UGC NET Questions (Paper – 1)

The system that uses digits from 0 to 7 is known as the octal number system. The prefix “oct” indicates eight, reflecting the eight different symbols used. In octal, each position represents powers of 8, such as 1, 8, 64 and so on. Hence the correct name for this base-8 system is octal.

Option A:
Option A denotes the decimal system, which uses ten symbols from 0 to 9 and therefore has base 10. Decimal does not restrict itself to the range 0 to 7. Thus it cannot be described as a system using only digits 0 to 7.

Option B:
Option B refers to the binary system, which uses only two symbols, 0 and 1. Binary is base 2 and therefore has far fewer symbols than a system that uses eight digits. Hence it does not match the description in the stem.

Option C:
Option C indicates the hexadecimal system that uses digits 0–9 and letters A–F to represent sixteen values. This is a base-16 system, so it definitely does not use just digits 0 to 7. Therefore, hexadecimal cannot be the correct answer.

Option D:
Option D is correct because the octal system is precisely the base-8 system using digits 0 to 7. Each octal digit corresponds neatly to three binary bits, which is why it is used sometimes in computing. This matches the given description exactly.

Statements A, B and D correctly outline features of local environmental planning. Local bodies indeed plan for waste, water and green areas, people’s participation enhances implementation and integrating local knowledge can make plans more effective and context-specific. Statement C is incorrect because local actions aggregate to influence global outcomes, and local planning is essential for achieving broader environmental goals. Thus, the correct combination is A, B and D only.

Option A:
Option A is correct as it brings together the relevant governance, participation and knowledge aspects and excludes the dismissive statement C. It highlights that local planning has both local and broader significance. Therefore, it aligns with the unit’s emphasis on decentralised environmental management.

Option B:
Option B is incorrect because it omits D, which is a valid statement about the value of local and traditional knowledge. This omission makes the description of local planning less comprehensive.

Option C:
Option C is incorrect since it includes C and treats it as correct along with B and D. C wrongly claims that local planning is irrelevant to global issues, ignoring the importance of local-level implementation for global agreements. Hence, this combination cannot be accepted.

Option D:
Option D is incorrect as it groups A, C and D, thereby accepting C as correct. Although A and D are true, retaining C undermines the logic of multi-level environmental governance.

Statements A, B and D give a correct picture of open access journals, while statement C is incorrect. Many open access journals are peer-reviewed and maintain quality standards while offering free access to readers. Creative Commons licences often define how content may be reused. By increasing accessibility, open access can enhance visibility and citations. Therefore, the set A, B and D only is correct.

Option A:
Option A is incorrect because it includes only A and B and leaves out D. While A and B are true, statement D is also correct in explaining the impact of open access on visibility and citations. Excluding D makes this option incomplete.

Option B:
Option B is incorrect because it groups A, B and C as correct, accepting C. Statement C is wrong because peer review and open access are independent decisions; many journals are both open and peer-reviewed. Including C therefore invalidates the combination.

Option C:
Option C is incorrect because it lists B, C and D as correct. Although B and D are true, C is false and claims that open access implies lack of quality control. Any combination that accepts C cannot be the right answer.

Option D:
Option D is correct because it chooses A, B and D, which accurately describe free access, licensing and enhanced visibility. It excludes the misleading idea that open access negates peer review and so matches current scholarly communication practices.

The halo effect occurs when an overall positive impression of a person leads us to evaluate specific behaviours more favourably than they deserve. In the stem,the teacher lets one impressive answer influence judgement of later responses. This is a textbook case of the halo effect.

Option A:
Pygmalion effect relates to self fulfilling prophecies based on expectations,which is related but distinct.

Option B:
Halo effect shows how initial impressions bias later communication and evaluation,making option A correct.

Option C:
Hawthorne effect involves behaviour change because people know they are being observed,not because of prior impressions.

Option D:
Contrast effect means judging a person relative to another,not simply carrying over one positive impression.

This option is correct because 3³ means 3 multiplied by itself three times. Calculating 3 × 3 × 3 gives 27. This follows directly from the definition of exponentiation. Therefore, 3³ equals 27.

Option A:
Squaring 3 gives 3² = 9, which is too small. The exponent 3 requires one more multiplication by 3. Hence, 9 is not the correct value for 3³.

Option B:
The result 27 comes from multiplying 3 by itself three times in succession. The sequence 3, 9 and then 27 confirms that 3³ = 27. This directly matches the required calculation, so this option is correct.

Option C:
The number 18 does not arise from any standard power of 3. It would require 3 × 6, not 3 × 3 × 3. Therefore, 18 is not correct here.

Option D:
The number 21 also does not match the cube of 3. It lies between 16 and 25 but has no connection to 3³. Thus, this option is incorrect.

Alaukika pratyaksha covers modes of perception that transcend ordinary sense contact, including samanyalaksana, jnanalaksana and yogaja forms. These deal with universals, previous cognitions and yogic insights respectively. Nyaya introduces this class to account for special kinds of awareness that cannot be reduced to straightforward sensory operations. Therefore the extraordinary perception mentioned in the stem is alaukika pratyaksha.

Option A:
Option A, laukika, refers to ordinary empirical perception through the external senses and does not include yogic or subtle perceptions.

Option B:
Option B, savikalpa, is determinate perception, which can be either ordinary or extraordinary and is not itself the category of extraordinary perception.

Option C:
Option C, nirvikalpa, is indeterminate awareness, again compatible with either ordinary or extraordinary modes, but not equivalent to them as a class.

Option D:
Option D is correct because alaukika literally means “non-worldly” and is used specifically to group special perceptions beyond everyday experiences.

Statements A, B and D are correct because they describe the standard classification of ecosystem services and give examples of regulating and cultural services. Provisioning, regulating, cultural and supporting services are recognised in major assessments, and pollination and climate regulation are key regulating services. Recreation and spiritual values are central cultural services. Statement C is incorrect since the concept explicitly links ecosystem functioning to human well-being. Thus, A, B and D together form the correct combination.

Option A:
Option A is incomplete as it includes only A and B and omits D. Without cultural services, the answer fails to capture the full range of acknowledged ecosystem service categories.

Option B:
Option B is correct because it groups all accurate statements and excludes C, which wrongly claims that human well-being is ignored. This reflects the accepted framework used in environmental economics and ecology.

Option C:
Option C is incorrect because it accepts C along with B and D. Including C undermines the purpose of the ecosystem services framework, which is precisely to highlight human dependence on ecosystems.

Option D:
Option D is incorrect as it combines A with C and D and treats C as true. Although A and D are correct, the presence of C makes the overall combination conceptually wrong.

Statements A, B, C, D and F are all correct descriptions of facilitative and authoritarian roles. A is true because facilitators support learners in constructing knowledge. B is true since authoritarian teachers keep control and make decisions alone. C is true as collaborative discussion is typical of facilitative classrooms. D is true because authoritarian teaching tends to restrict participation, and F is true because facilitative teachers use learner feedback to adjust instruction. E is false because facilitators still provide structure and guidance, so A, B, C, D and F only is the correct combination.

Option A:
Option A includes A, B, C and D but omits F, neglecting the important element that facilitators respond to learner feedback. Without F, the picture of facilitative teaching is incomplete, so this option cannot be considered fully correct.

Option B:
Option B adds E to A, B, C and D, yet E wrongly claims that facilitators never provide structure. Facilitators do guide learning through scaffolding, so including E makes A, B, C, D and E only an invalid combination.

Option C:
Option C brings together A, B, C, D and F, correctly describing learner construction, teacher control, collaboration, restricted participation in authoritarian contexts and responsiveness to feedback. Because it excludes only the false statement E, this option is the correct one.

Option D:
Option D groups B, C, D and F but leaves out A, thereby omitting the central idea that facilitators encourage learners to construct their own understanding. Although it includes several true statements, the absence of A means B, C, D and F only is incomplete.

Feedback is the information that receivers send back to the sender about how they have understood the message. Nods,questions and quiz responses signal students' comprehension levels. This allows the teacher to adjust pace and explanations. Thus these behaviours function as feedback.

Option A:
Noise refers to interference that disrupts the message rather than helping evaluate understanding.

Option B:
Feedback is the learner’s response that tells the teacher whether the message was understood,helping the teacher adjust instruction.

Option C:
Redundancy involves intentional repetition of information,not student reactions.

Option D:
Gatekeeping is about selecting content for dissemination,not classroom responses.

The understanding level of teaching stresses that learners should grasp the meanings of concepts rather than merely repeat them. At this level, students can interpret information, explain ideas in their own words and see relationships between facts. The teacher uses examples, analogies and questions to check whether genuine comprehension has been achieved. Because the stem highlights comprehension, interpretation and explanation, it clearly indicates the understanding level of teaching.

Option A:
Memory level teaching focuses mainly on reproducing information as it was presented, with little demand for interpretation or explanation. Students might answer “what” questions but struggle with “why” and “how” questions. Thus, it does not match the emphasis on understanding described in the stem.

Option B:
Reflective level teaching expects learners to engage in critical inquiry, problem-solving and hypothesis formation. It involves dealing with complex, ill-structured problems and making original judgments. This goes beyond the basic comprehension focus of the stem, so reflective level is not the best fit here.

Option C:
Understanding level teaching involves moving learners from rote recall to meaningful learning. Students can restate ideas, summarise texts and illustrate concepts with their own examples. Since the question mentions interpreting meanings and explaining in one’s own words, this option correctly identifies the level.

Option D:
Drill level is not a standard label in the commonly cited tri-level classification of teaching. The word “drill” suggests repetitive practice, which is closer to memory level than to comprehension-oriented teaching. Therefore, it is not an appropriate name for the level described.

Statements B and D are wrong, while A and C are correct, so the correct combination of wrong statements is B and D. A is true because formal communication follows official channels defined in the organisational structure. C is true since informal networks can often circulate information quickly, though not always accurately, thereby supplementing formal messages. B is false because informal communication does not always transmit false information; it may be accurate or inaccurate. D is false because formal communication can be slower than informal communication due to multiple levels and procedures.

Option A:
Option A is correct because it groups B and D, the two statements that misrepresent formal and informal communication. It recognises that informal networks do not inherently deal in falsehoods and that formal channels are not always the fastest. By excluding A and C, which are accurate, this option correctly identifies the wrong statements.

Option B:
Option B is incorrect because it identifies only B as wrong and ignores D. While B is indeed incorrect, D also makes an absolute claim about speed that does not hold in practice. Thus this option does not capture all the wrong statements.

Option C:
Option C is incorrect because it marks D only as wrong and omits B. D is certainly false, but B also wrongly portrays the grapevine as always unreliable. Since both B and D are wrong, an option containing only D is incomplete.

Option D:
Option D is incorrect because it treats A, B and D as wrong, even though A correctly describes formal communication. Including A among wrong statements makes this combination inconsistent with organisational communication principles.

Communication is fundamentally understood as a process where a sender encodes a message and a receiver decodes it to arrive at shared meaning. It is not just about sending information but ensuring that understanding is created at the receiver’s end. Symbols such as language, gestures and images are used as carriers of meaning. In education, this shared meaning becomes the basis for effective teaching learning.

Option A:
Option A highlights all the essential elements of communication: sender, receiver, message, symbols and shared meaning. It captures the idea that communication aims at understanding rather than mere transmission. By emphasizing process and meaning, it aligns with standard definitions used in educational communication.

Option B:
Option B treats communication as one way transfer of facts, ignoring the receiver’s active role and understanding. Without feedback or concern for comprehension, this becomes information dumping rather than genuine communication.

Option C:
Option C describes a random exchange of words, which lacks the purposeful sharing of meaning required for true communication. Without intention and coherence, such exchanges do not support teaching learning processes.

Option D:
Option D focuses only on the physical transmission of sounds and ignores whether the sounds are understood as meaningful messages. Mere sound without shared meaning does not fulfil the educational purpose of communication.

Statement B is the only wrong statement because coercive measures such as forced sterilisation contradict the principles of human rights and voluntary, informed choice that underlie rights-based population policies. Statements A, C, D, E and F are correct: they describe voluntary approaches, the role of services, education’s influence on fertility, the importance of gender equality and the benefits of integrating reproductive health with broader programmes. Therefore, the correct answer is the option that identifies B alone as wrong.

Option A:
Option A is correct because it isolates B as the single statement that conflicts with contemporary human rights frameworks while treating all the other statements as accurate reflections of rights-based population and reproductive health policies. It aligns with international agreements that emphasise voluntarism and autonomy.

Option B:
Option B is incorrect as it groups C with B, even though C correctly states that reproductive health services influence fertility and maternal health. Including C as wrong would deny strong evidence about service access and demographic outcomes.

Option C:
Option C is incorrect since it treats A and C as wrong along with B. Statements A and C are central to rights-based approaches and service-oriented population policy, so this combination misclassifies two correct statements.

Option D:
Option D is incorrect because it adds D and E to B as wrong statements. In reality, D and E accurately highlight the roles of girls’ education and gender equality, so grouping them with a coercive approach is conceptually inconsistent.

The pattern is captured by the polynomial aₙ = n⁵ − 2n² + 4 with n starting from 1. For n = 1, 2, 3, 4 and 5 this formula yields 3, 28, 229, 996 and 3079, exactly the given sequence. Evaluating the same expression at n = 6 gives 7708. Thus 7708 is the only value that continues this quintic pattern consistently.

Option A:
Option A, 7708, is precisely the value obtained from aₙ = n⁵ − 2n² + 4 when n = 6. It maintains the strong fifth-power growth combined with the quadratic subtraction and constant term that shape the earlier numbers. Because this rule explains all five terms and leads directly to 7708 next, this option is correct.

Option B:
Option B, 7684, is 24 less than the required value and does not equal the formula’s output for n = 6. To accept 7684 we would need to diminish the polynomial result only at this index. Such a modification is not supported by the rest of the sequence, so option B is incorrect.

Option C:
Option C, 7724, is 16 greater than the pattern value and again cannot be produced by n⁵ − 2n² + 4 at n = 6. Using 7724 would inflate the term beyond the rule’s prediction, breaking the algebraic structure. Therefore option C is not a valid continuation.

Option D:
Option D, 7740, deviates even more from 7708 and likewise fails to satisfy the expression at n = 6. Adopting 7740 would ignore the exact polynomial relationship linking the terms. Hence option D is not acceptable.

Statements A, C and E correctly describe learner-centred teaching because they emphasise active involvement, use of prior knowledge and collaborative, problem-based activities. B is false as a purely lecture-based class without interaction is typically teacher-centred, not learner-centred. D is false because in learner-centred classrooms the teacher still guides, scaffolds and structures learning rather than remaining a mere observer. Therefore, the correct set of statements is A, C and E only, making option B the right answer.

Option A:
Option A includes A and C, which are true, but omits E, even though collaborative and problem-based activities are strong examples of learner-centred approaches. Because it leaves out one true statement, this combination is incomplete and cannot be correct.

Option B:
Option B contains A, C and E, all of which highlight active engagement, attention to learners’ backgrounds and use of collaborative tasks, so it captures the full set of true statements. It correctly excludes B and D, which misrepresent lecture reliance and teacher passivity. Hence A, C and E only is the correct combination.

Option C:
Option C adds B to A and C, but B incorrectly labels exclusive, non-interactive lecture as learner-centred, which clashes with the principle of active learner participation. Since it mixes a false statement with true ones, A, B and C only is not valid.

Option D:
Option D groups C, D and E, but D wrongly suggests that learner-centred teaching eliminates teacher guidance entirely. Including D as if it were true, and omitting A, results in an inaccurate description of learner-centred approaches. Thus C, D and E only cannot be accepted.