UGC NET Questions (Paper – 1)

A, B, D and E are correct; C is false. Nyaya treats dreams as illusory/non-veridical rather than paradigms of valid perception. It defines perception via sense–object contact and distinguishes nirvikalpaka and savikalpaka stages, and UGC NET may test such details.

Option A:
Option A is incomplete because it omits E (exam relevance), which is true.

Option B:
Option B is correct because it includes all true statements and excludes C (false about dreams).

Option C:
Option C is incomplete because it omits A (definition of perception), which is true.

Option D:
Option D is incorrect because it includes C (false).

Stratified sampling involves dividing the population into strata based on relevant characteristics such as age, gender or region, and then selecting samples from each stratum, usually by random methods. This approach ensures that key subgroups are adequately represented in the sample. It can increase precision and allow for subgroup comparisons. Hence, the technique described in the stem is correctly termed stratified sampling.

Option A:
Cluster sampling selects intact groups such as schools or villages as the initial units and then studies all or some members within them; it does not primarily aim at forming homogeneous strata for representation. Therefore, cluster is not the correct completion.

Option B:
Option B, stratified sampling, focuses on homogeneity within strata and heterogeneity between them in relation to the variable of interest. By drawing from every stratum, it guards against underrepresentation of smaller but important groups, which matches the description in the question.

Option C:
Systematic sampling chooses every kth unit from a list after a random start and does not inherently ensure representation of specific homogeneous subgroups. Thus, it is not the best answer here.

Option D:
Quota sampling is a non-probability method where quotas for categories are filled using convenience selection, so it lacks the random component that defines stratified probability sampling. It therefore does not fit the stem.

Statements A, B and D present a widely accepted view of the teaching–research–innovation nexus. Research-informed teaching updates classroom content, undergraduate involvement deepens learning and linking teaching with research and innovation builds higher-order thinking. Statements C, E and F are false because quality teaching remains important, innovation ecosystems are connected to academic programmes and real-world problems are legitimate subjects of research.

Option A:
Option A is incorrect because it omits D and therefore fails to highlight the broader impact of integrating teaching, research and innovation on critical and creative capacities.

Option B:
Option B is incorrect as it leaves out A, so it does not explicitly mention the process of bringing research insights into classroom teaching.

Option C:
Option C is incorrect because it introduces E, which separates innovation ecosystems from academic programmes, and still omits B, leading to an incomplete and partly false combination.

Option D:
Option D is correct as it includes A, B and D, the three true statements about research-informed teaching, student involvement and the cognitive benefits of integration, while excluding C, E and F, which undermine teaching quality, programme linkages and real-world engagement.

Statements A and B together provide a balanced understanding of quality work in higher education. Statement A is true because quality assurance systems are meant to ensure that minimum standards are consistently met. Statement B is true as quality enhancement goes further by encouraging innovations and ongoing improvement. Statement C is false since institutions are expected to sustain and improve quality even after accreditation. Statement D is false because student feedback is widely recognised as a valuable input for enhancement. Hence, A and B only are correct.

Option A:
Option A is incomplete because it recognises assurance but overlooks the dynamic improvement dimension described in B. Without B, the notion of quality would appear static and compliance-oriented only.

Option B:
Option B is correct because it combines assurance and enhancement, reflecting both maintenance and continuous improvement, while excluding C and D, which deny the ongoing and participatory nature of quality processes.

Option C:
Option C is incorrect because it adds C, which wrongly suggests quality work ends with accreditation, even though accreditation itself expects sustained improvement.

Option D:
Option D is incorrect because it accepts C and ignores A, thereby denying both the requirement for continuous quality activities and the basic framework of assurance processes.

In logical reasoning, an argument is a connected group of statements in which one statement is presented as the conclusion. The remaining statements function as premises that support this conclusion. This structure of claim plus supporting reasons is exactly what the stem describes. Therefore the appropriate name for such a set of statements is an argument.

Option A:
Option A names argument, which is defined as premises offered in support of a conclusion. It captures both the inferential claim and the supporting reasons. Hence it precisely fits the description given in the question.

Option B:
Option B refers to an explanation, which clarifies why something happens or is the case. Explanations may use reasons, but they usually assume the truth of what is explained rather than argue for it. Thus explanation is not the general label for the structure mentioned in the stem.

Option C:
Option C, description, simply reports or depicts a situation without drawing an inferred claim. Descriptive sentences can all be true yet still fail to support a particular conclusion. Therefore a description does not match the idea of premises leading to a conclusion.

Option D:
Option D, illustration, presents examples to make a general claim clearer. Illustrations presuppose the claim instead of offering premises to justify it. Hence illustration alone does not constitute an argument in the logical sense required here.

Carbon credits are units created when a project or activity demonstrably reduces or removes greenhouse gas emissions compared to a baseline. Each credit corresponds to a specific quantity, often one tonne of CO₂ equivalent, and can be traded and used for compliance in emissions trading schemes.

Option A:
Option A is incorrect because credits reward emission reductions, not fossil fuel production; fossil fuel subsidies undermine mitigation goals.

Option B:
Option B is correct as it emphasises both the tradable nature and the quantified emission reduction or removal that a credit represents.

Option C:
Option C is incorrect since a tax on renewable energy would discourage clean energy and is unrelated to the concept of credits.

Option D:
Option D is incorrect because credits exist within capped or regulated systems and do not give unlimited permission to pollute; entities must hold enough credits to match their emissions.

Statement (A) correctly describes teaching as a purposeful activity that brings desirable changes in learner behaviour, so it is not a wrong statement. Statement (B) is wrong because teaching is broader than training and cannot be reduced only to drill-based skill formation. Statement (C) is correct as teaching involves both creative, intuitive elements and systematic, scientific planning. Statement (D) is wrong since modern teaching emphasises learners' needs, interests and active participation rather than mere information transmission, so the wrong statements are B and D only.

Option A:
Option A assumes that only statement B is wrong and treats D as acceptable. However statement D reduces teaching to one-way transmission of information without considering learner needs, which contradicts learner-centred pedagogy. By ignoring the error in D, this option fails to include all wrong statements and is therefore incorrect.

Option B:
Option B correctly groups together statements B and D, both of which misrepresent the nature and objectives of teaching. B equates teaching with narrow drill-based training, while D ignores the centrality of learner needs and interaction. Because it includes both wrong statements and excludes the correct statements A and C, this combination accurately identifies the wrong statements.

Option C:
Option C treats A, B and D as wrong, but statement A is actually a sound definition of teaching as a purposeful activity producing desirable change in learners. Including A among the wrong statements shows confusion about the intended outcomes of teaching. As it wrongly labels a correct statement as wrong, this combination cannot be accepted.

Option D:
Option D declares that all four statements A, B, C and D are wrong. In reality A and C clearly express widely accepted views of teaching as purposive and as both an art and a science. By wrongly grouping these valid statements with the incorrect ones, the option overgeneralises and becomes an incorrect choice.

A sampling frame is a practical list or representation of all units in the population that can potentially be selected for the sample, such as a roster of students or a registry of schools. It operationalises the population for sampling purposes. The quality of the sampling frame strongly affects the representativeness of the sample. Because the stem describes a complete list of sampling units from which the sample is drawn, sampling frame is the correct term.

Option A:
Population denotes the entire set of individuals or units to which the researcher wishes to generalise findings, but it may exist conceptually without a concrete list. A sampling frame is a specific listing used to select sample elements. Therefore, population does not precisely match the stem’s description.

Option B:
A sample is the subset of units actually selected from the sampling frame for study, not the list from which they are chosen. The stem focuses on the list itself, so sample is not the right completion.

Option C:
Sampling frames are crucial for probability sampling, as they determine whether every population element has a known chance of selection. Incomplete or biased frames can lead to coverage error. This role corresponds exactly to the description in the question, confirming sampling frame as the appropriate answer.

Option D:
Cluster refers to naturally occurring groupings within the population, such as schools or villages, which may be sampled in cluster sampling designs. It is not the same as the comprehensive list of units used in selection. Hence, cluster is not the correct term here.

Statement E is the only wrong statement in this list. A is correct because induction proofs typically start by verifying the statement for the first natural number in the domain. B is correct since the induction step assumes P(k) and proves P(k+1). C correctly states that if the base and step are valid, the result holds for all relevant n. D is true because induction is a method for proving infinitely many cases using a finite argument. E is false because without proving the base case, there is no guarantee that the chain of implications starts, so the induction proof is incomplete.

Option A:
Option A is incorrect since it claims A alone is wrong, but A accurately describes the base step of induction. Declaring it wrong contradicts standard textbook presentations.

Option B:
Option B is wrong because it treats both A and E as wrong. While E is indeed incorrect, A is a true description of the base case and so cannot be grouped with E as wrong.

Option C:
Option C is correct because it singles out E, which wrongly dismisses the need for a base case, as the only incorrect statement. The other statements together present a coherent picture of mathematical induction.

Option D:
Option D is incorrect because it adds A and C to E in the set of wrong statements. C is a true summary of the outcome of induction, and A correctly describes the base step, so this option misclassifies several true statements as wrong.

Wiki-based environments provide simple editing interfaces so that multiple users can add, modify and link content pages. The revision history ensures transparency and allows rollback of problematic edits. This collaborative model supports collective knowledge construction and continuous updating of information. Thus sites such as Wikipedia exemplify wiki-based collaborative environments.

Option A:
Option A, static publishing, implies content managed only by a few administrators and rarely updated, which contrasts with the dynamic, user-edited nature of wikis.

Option B:
Option B, one way broadcasting, suggests information flowing from a single source to many receivers without their participation in content creation. Wikis are intentionally designed to be many-to-many rather than one-to-many.

Option C:
Option C, closed proprietary, would restrict editing rights and code access, whereas many wikis encourage broad participation and often rely on open technologies.

Option D:
Option D is correct because wikis are defined precisely as web systems enabling collaborative editing of linked pages, and the description in the stem fits this definition.

Statements A and B express the core idea of sustainable development, which is to balance economic growth with environmental protection and social equity while meeting present needs without compromising the ability of future generations. Statement C is incorrect because sustainable development does not reject technological innovation; instead, it promotes cleaner and more efficient technologies. Statement D is incorrect because sustainable development discourages over-exploitation of resources and promotes their prudent use. Therefore, the only correct combination of statements is A and B.

Option A:
Option A is correct because it includes statements A and B, both of which accurately define sustainable development as a balance among economic, environmental and social dimensions and emphasise intergenerational equity. Neither of these statements contains any exaggeration or contradiction with accepted definitions used in policy documents and UGC NET syllabus. Since statements C and D are false, excluding them makes this combination fully correct.

Option B:
Option B is incorrect because it adds statement C to the otherwise correct pair A and B. Statement C wrongly suggests that sustainable development rejects technological innovation, whereas in reality sustainable development encourages innovations such as renewable energy, cleaner production and eco-friendly technologies. Including an incorrect statement makes the whole combination wrong.

Option C:
Option C is incorrect because it combines B, C and D. Although statement B is correct, statements C and D are both incorrect. Statement C misrepresents the role of technology, and statement D promotes over-exploitation of resources, which is against the principle of sustainability. Due to the presence of these false statements, the combination cannot be correct.

Option D:
Option D is incorrect because it includes all four statements A, B, C and D. While A and B are true, C and D contradict the very idea of sustainable development by rejecting technological solutions and encouraging overuse of resources. A correct combination must exclude false statements, so selecting all four statements leads to an incorrect answer.

Statements A, B and D correctly capture key ideas about teaching aids. A is true because aids help concretise abstract ideas and support understanding. B is true as the selection of aids should follow from objectives and learner characteristics rather than habit. D is true since improvised, low-cost local materials can be highly effective when used thoughtfully. C is false because using unrelated aids can distract learners, and E is false because aids can support learning in all subjects, including languages and social sciences. Therefore A, B and D only is the correct combination.

Option A:
Option A groups together A, B and D, all of which represent sound principles for choosing and using teaching aids. It excludes C and E, which either promote irrelevant use or restrict aids to a few subjects. Hence A, B and D only is the right answer.

Option B:
Option B lists A and B but omits D, ignoring the importance of low-cost and local materials that are often most accessible to teachers. The absence of D makes the description incomplete.

Option C:
Option C combines A, C and D and treats C as correct, even though using aids that do not relate to the content can confuse or bore learners. Because it includes a false statement, this option is invalid.

Option D:
Option D groups B, D and E, but E incorrectly suggests that only certain subjects benefit from teaching aids. Including E undermines the option’s correctness.

Option E adds C to an otherwise correct set of A, B and D and thereby adopts the misleading idea that aids should be used even when irrelevant. This mixture of correct and incorrect statements makes A, B, C and D only unacceptable.

In hexadecimal, the digit F represents decimal value 15. The binary representation of 15 uses four bits all set to 1, because 15 = 8 + 4 + 2 + 1. Therefore, the correct 4-bit binary equivalent of F is 1111₂.

Option A:
Option A, 1101₂, equals 8 + 4 + 0 + 1 = 13, which is less than 15. It does not fully represent the hex digit F.

Option B:
Option B, 1110₂, equals 8 + 4 + 2 + 0 = 14. It is still smaller than 15 and misses the 1's place value.

Option C:
Option C, 1100₂, sums to 8 + 4 = 12 and is even further from 15. It lacks both the 2's and 1's contributions.

Option D:
Option D is correct because 1111₂ sums all four available place values 8, 4, 2 and 1, giving 15. This exactly matches the value of F in hexadecimal.

Statement B is the only wrong statement in this group. A is correct because data sufficiency focuses on whether information is enough, not on computing the final number. C is true since some questions are solvable with one statement but not with the other alone. D is also correct because in some cases, even combining statements fails to give a unique answer. E is correct since we generally presume the given data are consistent unless told otherwise. B is false because two insufficient statements may remain insufficient when combined.

Option A:
Option A is incorrect as it treats both A and B as wrong, even though A accurately states the objective in data sufficiency problems. Misclassifying A makes the option invalid.

Option B:
Option B is correct because it isolates B as the sole incorrect statement, capturing the fact that insufficiency of each statement alone does not guarantee sufficiency when combined.

Option C:
Option C is wrong because it wrongly marks C as wrong as well, even though C describes a common situation where one statement alone can be sufficient.

Option D:
Option D is incorrect since it ignores B altogether and claims only C and D are wrong, even though D and C correctly describe typical sufficiency patterns and B is the problematic rule.

The All India Council for Technical Education is the apex statutory body for technical education in India. It is charged with planning, coordinating and regulating standards in technical and management institutions, including engineering colleges and polytechnics. It grants approvals for starting new programmes, increasing intake and establishing new institutes. Because the question focuses on the body for proper planning and coordinated development of technical education, AICTE is the correct answer.

Option A:
The University Grants Commission oversees universities in general and focuses on broader higher education, not specifically on technical programmes. While it coordinates university education, it does not directly regulate engineering and management institutions the way AICTE does. Thus, Option A is not the best fit here.

Option B:
The All India Council for Technical Education develops norms, accreditation guidelines and approval processes tailored to the needs of technical disciplines. Its specialised focus on engineering, pharmacy, architecture and management closely matches the description in the stem. This confirms its correctness as the answer.

Option C:
The National Medical Commission regulates medical education and the medical profession, dealing with MBBS and related health courses. It has a very different sectoral focus from technical and management education. Therefore, Option C does not match the role described.

Option D:
The National Assessment and Accreditation Council is an accreditation body that evaluates all types of higher education institutions for quality. It does not act as the main regulator for technical education planning and approvals, so Option D is not appropriate.