Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 154 - 159 of 191

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Question number: 154

» Physics » Light

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MCQ▾

Question

If the angle of reflection is 50 degree, what will be the angle of incidence with respect to a normal drawn perpendicular at the point of incidence?

Choices

Choice (4)Response

a.

50 degree

b.

100 degree

c.

0 degree

d.

150 degree

Question number: 155

» Physics » Light

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MCQ▾

Focal length is:

Choices

Choice (4)Response

a.

The radius of the circle formed with the curved part of the lens.

b.

Centre of the mirror

c.

Distance between the focus and pole of the mirror.

d.

Question does not provide sufficient data or is vague

Question number: 156

» Physics » Light

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MCQ▾

Question

Speed of light is:

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question number: 157

» Physics » Light

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MCQ▾

Question

Angle of incidence is 60 degree. What will be the angle between the incident ray and the reflected ray?

Choices

Choice (4)Response

a.

60 degree

b.

120 degree

c.

0 degree

d.

30 degree

Question number: 158

» Physics » Light

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MCQ▾

Question

White light consists of which of the following color?

Choices

Choice (4)Response

a.

Red

b.

Indigo

c.

Green

d.

All a. , b. and c. are correct

Question number: 159

» Physics » Light

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MCQ▾

Question

The ratio of the velocity of light in a vacuum to its velocity in a specified medium is known as:

Choices

Choice (4)Response

a.

Refractive index

b.

Speed index

c.

Velocity index

d.

Question does not provide sufficient data or is vague

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