Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 7]: Questions 152 - 158 of 191

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Question 152

Question MCQ▾

What is mirror?

Choices

Choice (4)Response

a.

Source of light energy

b.

Any polish and shiny surface

c.

Reflection surface

d.

Both b. and c. are correct

Edit

Question 153

Question MCQ▾

The image formed when we stand in front of a mirror is?

Choices

Choice (4)Response

a.

Real image

b.

Virtual image

c.

All of the above

d.

None of the above

Edit

Question 154

Question MCQ▾

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

Edit

Question 155

Question 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

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Question 156

Question MCQ▾

Speed of light is:

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

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Question 157

Question MCQ▾

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

Edit

Question 158

Question MCQ▾

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

Edit