UGC NET Questions (Paper – 1)

Multi channel communication uses more than one channel or mode simultaneously,such as verbal and visual. In the stem,the teacher employs speech,slides and videos,engaging multiple senses. This combination provides several channels through which the message reaches learners. Therefore multi channel is the appropriate term.

Option A:
Linear communication emphasises one directional flow and does not refer to the number of channels used.

Option B:
Multi channel communication often enhances understanding and retention by reinforcing ideas through different modes,making this option correct.

Option C:
Intrapersonal communication is internal and unrelated to the use of slides or videos.

Option D:
One way communication refers to lack of feedback,not to the richness of channels.

In two's complement, -1 is obtained by inverting all bits of +1 and then adding 1. For 8 bits, +1 is 00000001. Inverting gives 11111110, and adding 1 yields 11111111. Thus, the pattern 11111111 represents -1 in any fixed-width two's complement system, including 8 bits.

Option A:
Option A, 00000001, is the representation of +1, not -1. In unsigned binary and two's complement, this pattern always denotes a positive value. Therefore, it cannot be used for -1 in 8-bit two's complement.

Option B:
Option B, 10000000, represents the most negative value in 8-bit two's complement. Specifically, it corresponds to -128, derived from -2^(n-1). Because -128 is far from -1, this pattern is not correct for the given decimal number.

Option C:
Option C, 01111111, corresponds to the largest positive value, which is +127 in 8-bit two's complement. All leading bits except the sign bit are 1, making it a high positive integer. Thus, it cannot represent -1.

Option D:
Option D, 11111111, results directly from taking the two's complement of 00000001. It encodes -1 consistently in 8-bit signed arithmetic. This is why all bits set to 1 in two's complement signify -1, making this option correct.

In this question, statements A, C, E and F correctly describe the scientific method, while B and D are wrong. Statement A is true because systematic observation and logical reasoning are central to scientific inquiry. Statement C correctly identifies hypothesising, testing and verification as typical steps, and statement E is right that objectivity and replicability are crucial. Statement F is also true since scientific principles can be adapted within qualitative frameworks, whereas B is false because empirical evidence is fundamental and D is false as intuition alone cannot constitute scientific research.

Option A:
Option A treats B as the only wrong statement and ignores D. While B is indeed false because the scientific method depends on empirical evidence, D is also incorrect since relying solely on intuition contradicts scientific rigour. By missing one of the wrong statements, this option does not fully answer the question.

Option B:
Option B correctly identifies both B and D as wrong statements and does not misclassify any of the true statements. It recognises that rejecting empirical evidence and relying only on intuition are both incompatible with the scientific method. Because it captures the full set of wrong statements and excludes the correct ones, this option is the right answer.

Option C:
Option C marks only D as wrong and overlooks B. Although D is clearly false, B is equally incorrect because scientific research requires empirical data. Since this combination fails to include all the wrong statements, it cannot be accepted.

Option D:
Option D wrongly includes statement C among the wrong statements along with B and D. Statement C is actually a correct description of typical steps in the scientific method. By misclassifying a correct statement as wrong, this option becomes logically inconsistent.

Statements A, B, C and E are correct because technical reports present detailed methods and analyses, popular reports translate findings for general readers, executive summaries condense key points and the same study may be reported differently for different audiences. Statement D is false; proper referencing is essential across all report types to acknowledge sources and allow verification. Hence, the combination including A, B, C and E and excluding D is correct.

Option A:
Option A is correct since it recognises both the diversity of report formats and the need for adaptation to audience, while also assuming proper referencing even if that is not restated. It excludes D, which negates a core academic norm.

Option B:
Option B is incomplete because it omits E, failing to state explicitly that multiple formats can be produced from a single study for various stakeholders. Without E, the adaptability of reporting is not fully captured.

Option C:
Option C is wrong as it includes D, which wrongly suggests that references are unnecessary, and omits A, which correctly describes the detail level of technical reports. This combination both adds a false statement and drops a true one.

Option D:
Option D is also incorrect because it accepts D along with A and E, thereby endorsing the idea that references are unnecessary. Such a view undermines accountability and scholarly transparency.

To solve 5x + 3 = 18, we first subtract 3 from both sides to isolate the term with x. This gives 5x = 15. Dividing both sides by 5, we get x = 15 ÷ 5 = 3. Therefore, the solution of the equation is x = 3.

Option A:
Option A, 2, does not satisfy the equation because substituting x = 2 yields 5 × 2 + 3 = 13, which is not equal to 18. So this value fails to make both sides equal.

Option B:
Option B, 3, when substituted gives 5 × 3 + 3 = 15 + 3 = 18, which matches the right side and confirms that x = 3 is the correct solution.

Option C:
Option C, 4, produces 5 × 4 + 3 = 23, which is greater than 18 and so cannot be the solution.

Option D:
Option D, 5, gives 5 × 5 + 3 = 28, which again does not equal 18, and therefore cannot solve the equation.

In each group the letters are equally spaced by six positions in the alphabet. AGM uses positions 1, 7 and 13, BHN uses 2, 8 and 14, CIO uses 3, 9 and 15 and DJP uses 4, 10 and 16. The starting letter increases by one each time, so the next group should start at E and use letters at positions 5, 11 and 17, which are E, K and Q. Hence EKQ is the correct continuation.

Option A:
Option A, EKR, has the correct first two letters but ends with R, which is position 18 instead of 17. That changes the spacing of the last jump to seven rather than six. Because the sequence relies on a constant gap of six between letters in each group, EKR does not follow the pattern.

Option B:
Option B is correct because E, K and Q lie exactly six positions apart from each other, just like the letters in all previous groups. The starting letter E also continues the simple progression from A to D. This combination of consistent internal spacing and systematic movement of the first letter makes EKQ the only valid next term.

Option C:
Option C, ELP, does not keep a constant difference between successive letters, and its positions do not match the earlier arithmetic structure. The gaps inside ELP differ from those inside AGM, BHN, CIO and DJP. Therefore it cannot be considered a proper continuation of the series.

Option D:
Option D, FKR, breaks the pattern by starting at F instead of E and also fails to maintain the fixed six letter spacing. Both the starting position and the internal distances contradict the established rule, so FKR is not correct.

Statements A and C are correct because the contrapositive “If not q then not p” is logically equivalent to “If p then q”, and the inverse is indeed “If not p then not q”. Statement D is also true as many reasoning errors arise from confusing the converse “If q then p” with the contrapositive. Statement B is false because it mislabels the converse, and E is false because the contrapositive of a true implication is also true, not always false. Therefore, the combination A, C and D only is correct.

Option A:
Option A is correct since it gathers exactly the true statements about how converse, inverse and contrapositive are defined and how confusion among them can cause mistakes, while rejecting B and E, which misdescribe these relationships.

Option B:
Option B is incorrect as it includes B, which wrongly defines the converse, and thereby endorses a mislabelling of basic logical forms. Even though A and C are true, the presence of B ruins the option.

Option C:
Option C is wrong because it treats B, C and D as correct together, despite B being false. It also omits A, which explains the logical equivalence between an implication and its contrapositive, a central concept in NET-level logic.

Option D:
Option D is also incorrect because it includes E, which mistakenly claims that the contrapositive of a true implication is always false, and omits C, leaving out the correct statement of the inverse. This mixture makes the option unsound.

Statements A, B, D and E are correct, while C is wrong. A is true because physical layout and noise affect audibility and visibility. B is true as using unfamiliar language creates semantic and linguistic barriers. D is true since fear of ridicule is a classic psychological barrier. E is true because culturally distant examples reduce relevance and understanding. C is wrong because organisational barriers in classroom communication involve constraints like rigid rules, administrative procedures or structural limitations rather than simply defining them as a total absence of timetable. Hence, C only is the wrong statement.

Option A:
Option A selects C only and leaves A, B, D and E as correct, which is consistent with standard classifications of barriers. By identifying C as the single incorrect statement, this option is correct.

Option B:
Option B groups A and C as wrong, but A correctly identifies physical seating and noise as barriers. Declaring A wrong would misrepresent a well-established source of difficulty in classroom communication, so A and C only cannot be accepted.

Option C:
Option C pairs C and D as wrong, yet D is accurate in linking fear of ridicule with psychological obstacles to student participation. Including D among wrong statements makes C and D only invalid.

Option D:
Option D lists B, C and E as wrong, but both B and E accurately describe linguistic and cultural barriers. As a result, B, C and E only mixes true and false judgments and cannot be treated as the correct option.

Statements A, B, C, D and F are correct and together highlight ecological buffers, planning tools, early warning and long-term sea-level threats. Statement E is wrong because many coastal communities possess traditional knowledge relevant to preparedness. The correct set therefore includes A, B, C, D and F while excluding E.

Option A:
Option A is correct because it includes all true statements and excludes E, which wrongly denies the existence of relevant traditional knowledge.

Option B:
Option B is incorrect because it omits F, missing sea-level rise as a key long-term coastal risk.

Option C:
Option C is incorrect since it includes E (false).

Option D:
Option D is incorrect because it omits B, underplaying vulnerability created by unplanned construction and vegetation removal.

Statements A, B and D present a realistic view of the digital divide, while statement C oversimplifies the situation and is incorrect. The divide involves inequalities in access to devices, networks and skills; income, education and infrastructure are key determinants; and digital literacy shapes meaningful use. Even if everyone owns a mobile phone, disparities in connectivity, affordability and skills may persist, so C must be excluded. Thus, the correct combination is A, B and D only.

Option A:
Option A is incorrect because it lists only A and B and omits D. While A and B are true, statement D is also correct in stressing the importance of digital literacy. Excluding D ignores the usage dimension of the digital divide.

Option B:
Option B is incorrect because it includes A, B and C as correct statements, thereby accepting C. The claim that phone ownership alone dissolves the divide fails to recognise quality, skills and usage gaps. Including this statement invalidates the option.

Option C:
Option C is correct because it combines the three true statements and leaves out the oversimplified one. It reflects a multidimensional understanding of the digital divide, including access, context and capability.

Option D:
Option D is incorrect because it groups B, C and D as correct, accepting C. While B and D are true, incorporating C’s misleading assertion makes the combination wrong.

Statements A, B, C, D and F correctly distinguish communication modes and their integration. Synchronous interactions occur in real time with tools like video chat, whereas asynchronous tools like email and forums allow time-shifted participation. Combining both modes can address varied interaction needs. Statement E is false because blended learning typically uses both synchronous and asynchronous tools, not just one type. Thus all statements except E are correct, so A, B, C, D and F form the right combination.

Option A:
Option A is incomplete because it omits F and does not mention the pedagogical value of combining both modes. A, B, C and D describe the categories but not their integrated use.

Option B:
Option B is incomplete because it leaves out B and therefore does not provide an example of synchronous tools, even though it includes A, C, D and F. Without B, the explanation is less concrete.

Option C:
Option C is incorrect because it omits A and fails to state explicitly that synchronous communication requires simultaneous participation. While B, C, D and F are true, excluding A makes the set incomplete.

Option D:
Option D is correct because it covers definitions, examples and the rationale for mixing communication modes, while excluding the misleading claim that blended courses avoid asynchronous tools.

NEP 2020 specifies that by 2030 the minimum qualification for schoolteachers will be a four-year integrated B.Ed. degree offered in multidisciplinary institutions, combining subject depth with strong professional training.

Option A:
Option A is incorrect because a one-year certificate after school does not provide adequate disciplinary and pedagogical preparation for teaching.

Option B:
Option B is correct as it directly states the four-year integrated B.Ed. requirement that NEP sets as the minimum teacher qualification.

Option C:
Option C is wrong since a brief orientation course cannot replace comprehensive initial teacher education.

Option D:
Option D is incorrect because a generic bachelor’s degree without B.Ed. training does not meet the professional standards the policy wants for teachers.

The independent variable is the factor that the researcher deliberately manipulates or varies in an experiment in order to examine its impact on a dependent variable. It is considered the presumed “cause” in a cause–effect relationship. By changing its levels while controlling other variables, the researcher can test specific hypotheses about its influence. Therefore, the manipulated variable described in the stem is correctly called the independent variable.

Option A:
Option A, independent variable, captures the idea of a variable that is “independent” of changes in other variables within the experimental framework, because it is set by the researcher. Different groups or conditions receive different levels of this variable. Since the stem emphasises manipulation to observe effects, this option is appropriate.

Option B:
The dependent variable represents the outcome or response that is measured to see whether it changes as a result of the manipulation. It is not itself manipulated, so it does not fit the description.

Option C:
A control variable is kept constant across conditions to prevent it from confounding the relationship between independent and dependent variables. While important, it is not the variable being manipulated.

Option D:
Extraneous variables are uncontrolled factors that may influence the dependent variable unintentionally and threaten internal validity. They are neither intentionally manipulated nor central to the experiment’s main hypothesis, so they are not the right answer.

Statements A, B and D accurately reflect BoG-based governance under NEP 2020. A is true because the policy envisages empowered Boards to provide academic, administrative and financial autonomy while holding institutions accountable for outcomes. B is true as decisions are to be taken in a professional, transparent and non-political manner. D is also true since the BoG must ensure that institutional statutes and policies remain consistent with national regulations and quality norms. Statement C is false; NEP allows for external experts and stakeholders on governing bodies rather than excluding them altogether. Thus, A, B and D only form the correct combination.

Option A:
Option A is correct because it incorporates the three true statements about autonomy, professionalism and regulatory alignment, while excluding C, which misrepresents the composition of governance bodies.

Option B:
Option B is incorrect because it includes only A and B and omits D, thereby failing to mention the BoG’s responsibility to keep institutional policy in line with broader regulatory frameworks.

Option C:
Option C is incorrect because it lists B and D only and leaves out A, not explicitly stating that NEP 2020 centres the BoG model as the core governance structure for autonomous institutions.

Option D:
Option D is incorrect because it treats all four statements as correct, thereby accepting C’s claim that external members must always be excluded, which contradicts NEP 2020’s emphasis on expert and stakeholder participation.

Formal communication consists of messages that move along established hierarchical channels using recognised formats such as circulars,office orders and official emails. The stem emphasises strict adherence to prescribed routes and formats,which is the defining feature of formal communication. Therefore formal correctly completes the statement.

Option A:
Formal messages are often documented and can be used for accountability and record keeping. They reflect the official authority of the institution,rather than personal relationships,which aligns with the description.

Option B:
Informal communication arises spontaneously through social interactions and is not bound by official routes or formats,so it does not fit the stem.

Option C:
Grapevine refers specifically to unofficial,rumour based communication networks and is the opposite of strictly prescribed flows.

Option D:
Diagonal communication describes direction across levels and departments and can be either formal or informal; it is not defined solely by adherence to official routes.