NEET Physics: Questions 1 - 6 of 2142

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Question number: 1

MCQ▾

Question

A reference frame attached to the earth:

1. Is an inertial frame by definition
2. Cannot be an inertial frame because the earth is revolving round the sun
3. Is an inertial frame because Newton’s laws are applicable in this frame
4. Cannot be an inertial frame because the earth is rotating about its own axis

Choices

Choice (4) Response

a.

1 and 3

b.

1, 2 and 3

c.

2 and 4

d.

1 and 2

Question number: 2

MCQ▾

Question

The resistance R = V/i where V = 100 + or - 5 volts and i = 10 + 0.2 amperes. What is the total error in R?

Choices

Choice (4) Response

a.

7 %

b.

5 %

c.

5/2 %

d.

5.2 %

Question number: 3

MCQ▾

Question

If a ball is thrown vertically upwards with speed u, the distance covered during the last t seconds of its ascent is

Choices

Choice (4) Response

a.

(u + gt) t

b.

ut - gt 2

c.

ut

d.

gt 2

Question number: 4

MCQ▾

Question

If the length of rod A is 3.25 + 0.01 cm and that of B is 4.19 + 0.01 cm then the rod B is longer than rod A by

Choices

Choice (4) Response

a.

0.94 + 0.00 cm

b.

0.94 + 0.02 cm

c.

0.94 + 0.01 cm

d.

None of the above

Question number: 5

MCQ▾

Question

what will be the ratio of the distances moved by a freely falling body from rest in 4th and 5th seconds of journey?

Choices

Choice (4) Response

a.

1: 1

b.

16: 25

c.

4: 5

d.

7: 9

Question number: 6

MCQ▾

Question

If L, C and R represent inductance, capacitance and resistance respectively, then which of the following does not represent dimensions of frequency?

Choices

Choice (4) Response

a.

CL

b.

RL

c.

d.

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