UGC NET Questions (Paper – 1)

Ratio scales possess all properties of interval scales plus a true zero point, allowing meaningful statements about ratios. Time taken to complete a test has an absolute zero and permits comparisons such as one student taking twice as long as another.

Option A:
This option describes a nominal variable, where categories represent different types without inherent order or equal intervals. Hostel and rented house are labels, not quantities.

Option B:
This option refers to ordinal data, where ranks indicate order but not equal differences between positions; you cannot say that the difference between rank 1 and 2 equals that between 2 and 3.

Option C:
Option C describes temperature in degrees Celsius, which is usually treated as an interval scale: differences are meaningful, but zero does not represent the complete absence of temperature and ratios (40°C is not “twice as hot” as 20°C) are not meaningful.

Option D:
Option D is correct because time in minutes has a true zero and equal units, so both differences and ratios are meaningful, satisfying the definition of a ratio scale.

To convert 7F₁₆ to decimal, we use positional weights of base 16. The digit 7 is in the 16¹ place and F represents 15 in the 16⁰ place. So the decimal value is 7×16 + 15×1 = 112 + 15 = 127. Therefore, the correct decimal equivalent of 7F₁₆ is 127.

Option A:
Option A, 119, would correspond to a different combination of hex digits because 119 is not 7×16 + 15. It implies an incorrect evaluation of the place values or the value of F. Thus, it underestimates the contribution of the least significant digit.

Option B:
Option B, 125, is close to the correct value but still results from a miscalculation of 7×16 + 15. It might arise from incorrectly adding 112 + 13 instead of 15, showing an error in interpreting F. Hence 125 does not match the precise conversion.

Option C:
Option C correctly applies the base-16 positional rule: 7×16 = 112 and F = 15, giving a total of 127. This option not only uses the right weights but also interprets F as 15, which is crucial in hexadecimal arithmetic. Therefore it is the accurate decimal representation of 7F₁₆.

Option D:
Option D, 129, overshoots the correct value and would imply the least significant digit contributed 17 instead of 15. That is not possible because a single hex digit ranges from 0 to 15. Therefore, 129 cannot be the correct conversion of 7F₁₆.

Statement C is the only wrong statement because modern search engines do not order results simply by alphabetical order of site names. They use complex ranking algorithms based on relevance, content and many other factors. Statements A, B and D correctly describe crawling, phrase searching and advanced filtering capabilities. Hence, the correct option is the one that chooses only statement C as wrong.

Option A:
Option A is incorrect because it groups A and C as wrong statements. Statement A is true since crawlers or spiders are indeed used for indexing pages. Labeling this as wrong contradicts how search engines build their indexes.

Option B:
Option B is correct because it isolates C as the sole wrong statement. It accepts that quotation marks can enforce phrase matching and that advanced search options enable filtering. Recognising C as the only incorrect claim aligns with actual search engine behaviour.

Option C:
Option C is incorrect because it combines A, B and C as wrong statements. Both A and B are accurate descriptions of search engine features, and only C is false. By including true statements in the wrong set, this combination fails.

Option D:
Option D is incorrect because it lists B, C and D as wrong, even though B and D are correct. Phrase searching and advanced search filters are standard features of modern search engines. Mixing correct statements with a wrong one makes the option invalid.

A Type I error occurs when a statistical test leads the researcher to reject the null hypothesis even though it is actually true in the population. This is also called an alpha error and represents a false positive conclusion. The probability of committing a Type I error is controlled by the chosen significance level, such as 0.05. Hence, the situation described in the stem is correctly termed a Type I error.

Option A:
A Type II error happens when the test fails to reject the null hypothesis even though it is false, leading to a false negative conclusion. This concerns lack of power rather than over-detection of effects, so it does not match the definition in the question.

Option B:
Sampling error refers to natural fluctuations between sample statistics and population parameters due to observing only a subset of the population. It is a broader concept and is not specifically about the incorrect rejection of a true null hypothesis. Therefore, sampling error is not the correct completion.

Option C:
Systematic error is a consistent bias in measurement or procedure that skews results in one direction, often threatening validity, but it is not the specific decision error defined in statistical hypothesis testing. Thus, systematic error is not appropriate here.

Option D:
Type I errors are particularly serious in contexts where wrongly claiming an effect can lead to unnecessary or harmful interventions, which is why researchers often set conservative significance levels. This role fits exactly with the stem’s description of rejecting a true null hypothesis.

The dependency ratio compares the number of dependents (children and the elderly) with the number of working-age people. A high ratio means that each worker must support more non-working individuals through taxes, family transfers or community support. This can strain public finances, household incomes and social services. Therefore, the statement that highlights a large share of young or old dependents and increased burden on workers correctly explains the implication of a high dependency ratio.

Option A:
Option A is incorrect because a high proportion of working-age people would actually lower the dependency ratio, not raise it. In that case, fewer dependents rely on each worker, potentially easing economic pressure.

Option B:
Option B is incorrect as a high dependency ratio usually reflects the presence of many children and/or elderly, not their absence. Saying there are no elderly people contradicts the notion of a large dependent group.

Option C:
Option C is correct since it directly links the ratio to economic and social burden on those who are economically active. It reflects why age structure is important for planning pensions, education and employment policies.

Option D:
Option D is incorrect because if all citizens were economically independent, there would effectively be no dependents and the dependency ratio would be very low. This scenario does not align with the idea of a high dependency ratio.

NEP 2020 proposes a multi-entry, multi-exit undergraduate structure where one year of successful study can lead to a recognised certificate in the relevant discipline. This acknowledges partial learning, improves employability and allows students to re-enter later using accumulated credits.

Option A:
A Ph.D. is a terminal research degree that requires many years of study beyond a bachelor’s and cannot be obtained after just one year of UG education.

Option B:
This option correctly states the one-year exit point: a certificate in a discipline or field, which is exactly what NEP 2020 provides for as the first formal UG exit.

Option C:
A four-year integrated B.Ed. is a separate professional teacher education programme, not the qualification awarded for exiting after one year of a general UG programme.

Option D:
Saying there is “no qualification at all” contradicts NEP’s explicit multi-exit design, which intentionally offers a certificate after completing one year.

The receiver is the person or group that the message is directed towards. Receivers listen,read or observe and then interpret the content. In the classroom,the students primarily function as receivers when the teacher explains concepts. Hence receiver correctly completes the description in the stem.

Option A:
The sender is the one who initiates the message,which in this case is largely the teacher,not the students listening. Students may sometimes send feedback,but the stem focuses on their role while listening. So sender is not the best term here.

Option B:
Receivers actively decode the message,relating it to prior knowledge and context. The students in the example are doing exactly this,which is why receiver is the accurate label.

Option C:
A mediator would stand between parties to help clarify or negotiate messages,which is not usually the case for students listening to a lecture.

Option D:
Channel refers to the medium like spoken language or visuals,rather than the people who interpret messages,so it does not fit the situation.

NEP 2020 calls for exams to move away from rote recall towards competency-based questions that test understanding, application, problem-solving and critical thinking.

Option A:
This option reflects the rote-based assessment style that NEP 2020 explicitly wants to change.

Option B:
This option correctly captures the new focus on assessing whether students can use concepts meaningfully, not just recall them.

Option C:
Handwriting aspects are secondary and are not the central focus of exam reform in NEP 2020.

Option D:
Judging answers mainly by their length, without regard to content, contradicts the quality-oriented assessment vision of the policy.

Statements A, B and D are correct because environmental movements have indeed resisted unsustainable deforestation and displacement, combined ecology with livelihood rights and used legal channels such as public interest litigation. These features are prominent in many national and local struggles. Statement C is incorrect because many movements support alternative development paths and appropriate technologies rather than rejecting all development. Thus, the combination including A, B and D and excluding C is correct.

Option A:
Option A is incorrect as it includes only A and B and omits D. While A and B correctly capture grassroots and Chipko-type struggles, ignoring the legal strategies used by environmental groups leaves out an important dimension of environmental activism. The set of correct statements is therefore incomplete.

Option B:
Option B is incorrect because it combines A and D but leaves out B. The Chipko movement’s focus on both forests and livelihoods is an important example often cited in the syllabus. Excluding B means this option does not list all the correct statements.

Option C:
Option C is correct since it brings together A, B and D, which jointly describe the roles of movements in resisting harmful projects, protecting communities and using public interest litigation. It also rightly rejects C, which caricatures movements as anti-development in all forms. This makes it the only fully accurate combination.

Option D:
Option D is incorrect because it includes C along with B and D. Accepting C would imply that environmental movements reject all technological change, which is not true. Many movements advocate alternative, more sustainable technologies, so this option misrepresents their stance.

Statements A, B, C and E accurately describe the functions of a discussion section: interpreting results, relating them to prior work, suggesting implications and maintaining logical continuity with the results. Statement D is false because acknowledging limitations and alternative explanations strengthens rather than weakens the credibility of the report. Thus, the option that includes A, B, C and E while excluding D is correct.

Option A:
Option A is incomplete because it omits E, neglecting the need for clear linkage between the discussion and the earlier presentation of results. Without E, the flow of the report is not fully addressed.

Option B:
Option B is incorrect because it leaves out A, failing to underline that the core purpose of the discussion is to interpret findings in relation to objectives or questions.

Option C:
Option C is incomplete because it omits B, and therefore does not emphasise the standard practice of comparing new findings with existing literature. This reduces the sense of how research contributes to ongoing debates.

Option D:
Option D is correct since it groups together all true statements and explicitly excludes D, which promotes non-transparent reporting. It reflects accepted guidelines for writing the discussion section.

The 3R hierarchy gives highest priority to avoiding waste generation at source. Reducing consumption and material use comes first, followed by reusing items to extend their life. Recycling, though important, ranks after these because it still requires collection and processing. This order minimises environmental impacts and resource use most effectively.

Option A:
Option A is incorrect because starting with recycling ignores the greater benefits of reducing and reusing before waste is created.

Option B:
Option B is correct as it reflects the widely accepted order in waste-management policies.

Option C:
Option C changes the priority by placing reuse first, but reduction is conceptually more fundamental.

Option D:
Option D starts with recycling again, which does not align with the standard hierarchy.

Planning in teaching involves deciding in advance what to teach, how to teach and how to evaluate learning. It requires formulating instructional objectives, organising content logically and choosing suitable methods and resources. This work is done before actual classroom interaction begins. Hence, the activity of deciding objectives, sequence and methods clearly represents the planning function.

Option A:
This option describes conducting the final examination, which belongs to the evaluation and summative assessment functions. It is performed after most teaching is completed and is not a planning action.

Option B:
This option is correct because it directly describes preparatory activities carried out by the teacher. Such planning helps ensure coherence in the learning experience and sensible use of time. It sets a clear roadmap for both teacher and students, contributing to effective teaching.

Option C:
This option concerns attendance record keeping, an administrative and classroom management task. While important, it does not reflect the core planning of learning activities and objectives.

Option D:
This option refers to invigilation duties during examinations, which are supervisory responsibilities ensuring fairness and discipline, not planning instructional processes.

For 321₄, the digits correspond to 3×4² + 2×4¹ + 1×4⁰ = 3×16 + 2×4 + 1 = 48 + 8 + 1 = 57. Therefore, the decimal representation of 321₄ is 57.

Option A:
Option A correctly computes the contributions from each digit using powers of 4. It sums the products to obtain 57, consistent with the rules of base-4 positional notation.

Option B:
Option B, 61, arises from an incorrect addition or mis-weighting of digits and does not match the computed sum.

Option C:
Option C, 45, underestimates the result and suggests one of the digits was underweighted or omitted.

Option D:
Option D, 49, is too small and fails to account for the full value contributed by the highest place.

The ecological footprint is an indicator that translates human consumption of resources and generation of waste into an equivalent area of biologically productive land and water. It reflects how much of the Earth’s regenerative capacity is used to support a given lifestyle, city or nation. By comparing ecological footprint with available biocapacity, we can judge whether development is ecologically sustainable or exceeds planetary limits. Thus, the primary measure is the required productive area for resource use and waste assimilation, as stated in option A.

Option A:
Option A correctly captures both resource consumption and waste absorption in terms of biologically productive area. It links human activity to ecological limits, which is why the concept is widely used in sustainability studies.

Option B:
Option B is incorrect because it refers simply to land area, not to biologically productive land and water needed to sustain specific consumption patterns. A large country could still have a small ecological footprint if its population and consumption levels are low.

Option C:
Option C is incorrect since the number of species present refers to species richness or biodiversity, not ecological footprint. While biodiversity is important, it is a different indicator.

Option D:
Option D is incorrect as it narrows the focus to greenhouse gases from industry only. Ecological footprint includes resource extraction, energy use, food consumption and waste from all sectors, not just industrial emissions.

A uniform resource locator provides a structured way to specify the location and access method for a web resource. It typically includes protocol, domain name and optionally path and query parameters. Browsers use URLs to request the correct resource from web servers. Therefore the web address described is known as a URL, or uniform resource locator.

Option A:
Option A, universal resource number, is not a standard technical term and does not appear in web standards. It loosely resembles the acronym but is incorrect.

Option B:
Option B, unified routing link, again sounds plausible but is not the accepted term in networking or web technologies. It lacks formal recognition.

Option C:
Option C, universal record locator, may suggest a database concept but is not what web protocols specify for addressing resources. It is a distractor.

Option D:
Option D is correct because uniform resource locator is the official name used in standards like RFCs to denote web addresses such as those beginning with http or https. This matches the example provided in the stem.