NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 41 - 44 of 2142

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Question number: 41

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A small block slides without friction down an inclined plane starting from rest. Let Sn be the distance travelled from time t = n – 1 to t = n. then

is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 42

» Physics and Measurement » Errors in Measurement

MCQ▾

Question

If 97.52 is divided by 2.54, the correct result in terms of significant figures is

Choices

Choice (4) Response

a.

38.4

b.

38.39

c.

38.394

d.

38.937

Question number: 43

» Physics and Measurement » Errors in Measurement

MCQ▾

Question

In the context of accuracy of measurement and significant figures in expressing results of experiment, which of the following is/are correct?

  1. Out of the two measurements 50.14 cm and 0.00025 ampere, the first one has greater accuracy
  2. Out of the two measurements 50.14 cm and 0.00025 ampere, the second has greater accuracy
  3. If one travels 697 m by rail and 478 km by road, the total distance is 478.697 km.
  4. If one travels 478 km by rail and 397 m by road, the total distance travelled is 875 km.

Choices

Choice (4) Response

a.

1 and 3

b.

1 and 2

c.

2 and 4

d.

1, 2, 3

Question number: 44

» Physics and Measurement » Fundamental and Derived Units. Least Count

Assertion-Reason▾

Assertion (Ꭺ)

L/R and CR both have same dimensions.

Reason (Ꭱ)

L/R and CR both have dimension of time.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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