NET Practice Questions

According to Section 2(b) of the Environment (Protection) Act, 1986, an 'environmental pollutant' is defined as 'any solid, liquid or gaseous substance present in such concentration as may be, or tend to be, injurious to environment'. This is the precise legal term used in the Act for such substances. 'Hazardous substance' has a more specific definition related to chemical or physico-chemical properties causing harm, while 'contaminant' is a more general term.

This is a fundamental aspect of the digital divide, often referred to as the access divide, which is particularly pronounced between urban and rural areas in India.

Beyond mere access, the ability to use technology effectively constitutes the 'skills divide'. Many students may have access but lack the necessary digital literacy to benefit from e-learning.

This represents a linguistic or content-based dimension of the digital divide, where the availability of high-quality digital educational content in vernacular languages is limited, creating a barrier for non-English speaking students.

This is a two-level series. First, find the difference between consecutive terms:
7 - 3 = 4
16 - 7 = 9
32 - 16 = 16
57 - 32 = 25

The differences are 4, 9, 16, 25. These are the squares of consecutive numbers: 2^2, 3^2, 4^2, 5^2.
The next difference in the series should be 6^2 = 36.

So, the next number in the original series is 57 + 36 = 93.

The University Education Commission of 1948-49, popularly known as the Radhakrishnan Commission, was the first major commission on education after India's independence. It recommended the reconstitution of the University Grants Committee (which existed since 1945) into a statutory body, the University Grants Commission, on the general model of the University Grants Committee of Great Britain. This recommendation led to the UGC being formally established in 1953 and becoming a statutory body by an Act of Parliament in 1956.

True. Semantic barriers arise from problems with the meaning of words, symbols, or language. When a teacher uses idioms, jargon, or culturally specific phrases, the intended meaning may not be understood by students who do not share that specific cultural or linguistic background. This leads to a misunderstanding of the message itself, which is the definition of a semantic barrier.

The Transactional Model of communication best explains this scenario. Unlike linear models (like Lasswell's or Shannon-Weaver's) that see communication as a one-way process, the Transactional Model views it as a simultaneous exchange where both parties are senders and receivers. The problem described is not just about the message's effect or channel noise, but the absence of a dynamic feedback loop and shared meaning creation. Students are not just passive receivers; their lack of engagement is a form of non-verbal feedback that the system isn't capturing, indicating a failed transaction.

Maturation is a significant threat to internal validity in a single-group pre-test-post-test design. This threat refers to changes in the participants over time that are independent of the intervention, such as growing older, becoming more experienced, or simply getting tired. Without a control group for comparison, it is difficult to determine whether the observed changes in the post-test are due to the teaching method or to the natural development (maturation) of the students over the course of the study. Selection bias is not relevant as there is only one group. Instrumentation would be a threat if the pre-test and post-test were different in difficulty.

This argument follows the structure of Modus Tollens (denying the consequent). The logical form is: If P, then Q. Not Q. Therefore, not P. In this case, P is 'A course is listed in the prospectus' and Q is 'It is offered for the current academic year'. The premises state 'If P, then Q' (Premise 1) and 'Not Q' (Premise 2). The conclusion correctly deduces 'Not P'. Modus Ponens affirms the antecedent (If P, then Q. P. Therefore, Q). Disjunctive Syllogism involves an 'or' statement.

Peer-review sessions are a classic example of formative assessment. The goal is to provide feedback during the learning process to improve the final outcome, not just to assign a grade.

Low-stakes quizzes with immediate feedback are designed to help students and instructors gauge understanding and identify areas for improvement throughout the course, which is the core purpose of formative assessment.

The Flipped Classroom model is specifically designed for this purpose. In this model, students are first exposed to new material outside of class, usually through readings or online video lectures. Class time is then used to do the 'homework' of assimilating that knowledge through problem-solving, discussion, and other active learning activities. This directly matches the teacher's goal of using in-class time for higher-order thinking tasks.