Light (CBSE Class-7 Science): Questions 1 - 7 of 17

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Question number: 1

» Light » Spherical Mirrors » Convex Mirror

MCQ▾

Question

Which mirror is used a rear view mirror in automobiles?

Choices

Choice (4) Response

a.

Concave mirror

b.

Convex mirror

c.

All of the above

d.

None of the above

Question number: 2

» Light » Spherical Mirrors » Convex Mirror

MCQ▾

Question

Convex mirror is used as a:

Choices

Choice (4) Response

a.

Reflector

b.

Security mirror

c.

Fun mirrors

d.

Both a. and b. are correct

Question number: 3

» Light » Sunlight » Effect of Prism on Sunlight

MCQ▾

Question

In a prism:

Choices

Choice (4) Response

a.

Reflection of white light takes place

b.

Reflection and refraction of light

c.

Refraction of white light takes place

d.

Rectilinear propagation of light takes place

Question number: 4

» Light » Images Formed by Lenses » Convex Lens

MCQ▾

Question

A lens, which is thicker at the middle than at edges, is called as:

Choices

Choice (4) Response

a.

Convex lens & Converging lens

b.

Converging lens

c.

Concave lens

d.

Convex lens

Question number: 5

» Light » Light » Properties of Light

MCQ▾

Question

Light is a:

Choices

Choice (4) Response

a.

Light travels in a straight line

b.

Light enables us to look around

c.

Light is a form of energy

d.

All a. , b. and c. are correct

Question number: 6

» Light » Spherical Mirrors » Concave Mirror

MCQ▾

Question

Convex mirror has:

Choices

Choice (4) Response

a.

Inner surface is polished

b.

Outer curved surface is reflecting

c.

Both a. and b. are correct

d.

None of the above

Question number: 7

» Light » Spherical Mirrors » Real Image and Virtual Image

MCQ▾

Question

Type of image formed by the plane mirror is:

Choices

Choice (4) Response

a.

Real

b.

Virtual & Erect and formed behind the mirror

c.

Virtual

d.

Erect and formed behind the mirror

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