NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 218 - 220 of 2320

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Question number: 218

» Rotational Motion » Angular Momentum

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MCQ▾

Question

Calculate the angular momentum of a body whose rotational energy is 10 joule. If the angular momentum vector coincides with the axis of rotation and its moment of inertia about this axis is 8 x 10 -7 kg m 2

Choices

Choice (4)Response

a.

2 x 10 -3 kg m 2 /s

b.

4 x 10 -3 kg m 2 /s

c.

6 x 10 -3 kg m 2 /s

d.

All of the above

Question number: 219

» Communication System » Bandwidth of Transmission Medium

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MCQ▾

Question

Consider the following statements regarding the experiment to determine the surface tension of water by capillary rise method. Choose the correct statements.

  1. Capillary tube should be clean and liquid should be free from dirt and grease.
  2. Distilled water should be avoided.
  3. Distilled water should be added.
  4. Dirty liquid should be used.

Select the correct answers and mark it according to the following codes:

Choices

Choice (4)Response

a.

1,2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 220

» Laws of Motion » Force and Inertia

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MCQ▾

Question

The roadway bridge over a canal is the form of an arc of a circle of radius 20 m. What is the minimum speed with which a car can cross the bridge without leaving contact with the ground at the highest point (g = 9.8 m/s 2)

Choices

Choice (4)Response

a.

5 m/s

b.

289 m/s

c.

14 m/s

d.

7 m/s

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