NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 22 - 26 of 2320

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Question number: 22

» Physics and Measurement » Errors in Measurement

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Question

The length of a cylinder is measured with a meter rod having least count 0.1 cm. Its diameter is measured with Vernier calipers having least count 0.01 cm. Given that length is 5.0 cm. and radius is 2.0 cm. The percentage error in the calculated value of the volume will be

Choices

Choice (4)Response

a.

1 %

b.

4%

c.

2%

d.

3%

Question number: 23

» Physics and Measurement » Errors in Measurement

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According to Joule’s law of heating, heat produced H = I 2 Rt, where I is current, R is resistance and t is time. If the errors in the measurements of I, R, and t. are 3%, 4 % and 6 % respectively then error in the measurement of H is

Choices

Choice (4)Response

a.

17 %

b.

16%

c.

25%

d.

19%

Question number: 24

» Physics and Measurement » Errors in Measurement

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Question

Error in the measurement of radius of a cylinder is 4%. The error in the calculated value of its volume is

Choices

Choice (4)Response

a.

8%

b.

3%

c.

5%

d.

7%

Question number: 25

» Physics and Measurement » Errors in Measurement

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Question

Error in the measurement of radius of a sphere is 1%. The error in the calculated value of its volume is

Choices

Choice (4)Response

a.

3 %

b.

5%

c.

1 %

d.

7%

Question number: 26

» Kinematics » Motion in a Straight Line

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Question

A ball is dropped vertically from a height d above the ground. It hits the ground and bounces up vertically to a height d/2. Neglecting subsequent motion and air resistance, its velocity v varies with the height h above the ground is

Choices

Choice (4)Response

a.

It hits the ground and bounces up vertically -choice A

It Hits the Ground and Bounces up Vertically -Choice A

It hits the ground and bounces up vertically to a height d/2. - Answer

b.

It hits the ground and bounces up vertically - Choice B

It Hits the Ground and Bounces up Vertically - Choice B

It hits the ground and bounces up vertically to a height d/2. - Choice B

c.

It hits the ground and bounces up vertically to -Choice c

It Hits the Ground and Bounces up Vertically to -Choice C

It hits the ground and bounces up vertically to a height d/2. - Choice c

d.

It hits the ground and bounces up vertically - Choice D

It Hits the Ground and Bounces up Vertically - Choice D

It hits the ground and bounces up vertically to a height d/2. -Choice D

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