NEET Physics: Questions 2054 - 2057 of 2099

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Question number: 2054

» Rotational Motion » Frequency and Period

MCQ▾

Question

A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length l and height h. Find the time it takes to reach at bottom.

Choices

Choice (4) Response
a.

3hgsinθ

b.

hgsinθ

c.

hg1sinθ

d.

3hg1sinθ

Question number: 2055

» Rotational Motion » Angular Momentum

MCQ▾

Question

An inclined plane makes an angle 30° with the horizontal. A solid sphere rolling down this inclined plane from rest without slipping has a linear acceleration equal to,

Choices

Choice (4) Response
a.

5g7

b.

g3

c.

2g3

d.

5g14

Question number: 2056

» Ray Optics » Lens Maker's Formula and Lens Formula

Appeared in Year: 2016

MCQ▾

Question

A person can see clearly object only when they lie between 50cm and 400cm from his eyes. In order to increase the maximum distance of distinct vision to infinity, the type and power of the correcting lens, the person has to use, will be:

Choices

Choice (4) Response
a.

Convex, +0.15 diopter

b.

Concave, 0.2 diopter

c.

Convex, +2.25 diopter

d.

Concave, 0.25 diopter

Question number: 2057

» Atoms and Nuclei » Radioactivity

Appeared in Year: 2016

MCQ▾

Question

The half – life of a radioactive substance is 30minutes . The time (in minutes) taken between 40 % decay and 85 % decay of the same radioactive substance is:

Choices

Choice (4) Response
a.

60

b.

30

c.

15

d.

45

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