Light (CBSE Class-7 Science): Questions 8 - 15 of 17

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Question number: 8

» Light » Spherical Mirrors » Concave Mirror

MCQ▾

Question

The mirror in which inner curved surface is reflecting is called as:

Choices

Choice (4) Response

a.

Concave mirror

b.

Spherical mirror

c.

Convex mirror

d.

Question does not provide sufficient data or is vague

Question number: 9

» Light » Spherical Mirrors » Concave Mirror

MCQ▾

Question

Concave mirrors are used in:

Choices

Choice (4) Response

a.

Torches, head lights, shaving mirror

b.

Flood lights

c.

Collecting heat radiations

d.

All a. , b. and c. are correct

Question number: 10

» Light » Sunlight » Colors of Sunlight

MCQ▾

Question

White light of sun consists of how many colours:

Choices

Choice (4) Response

a.

Seven

b.

Seen in rainbow

c.

Five

d.

Spectrum of light

Question number: 11

» Light » Reflection of Light » Mirror

MCQ▾

Question

Curved mirror is called as:

Choices

Choice (4) Response

a.

Concave mirror

b.

Spherical mirror

c.

Parabolic mirror

d.

Convex mirror

Question number: 12

» Light » Reflection of Light » Mirror

MCQ▾

Question

A highly polished reflecting surface that can return the rays of light into the same medium is called as:

Choices

Choice (4) Response

a.

Lens

b.

Newton’s disc

c.

Mirror

d.

None of the above

Question number: 13

» Light » Images Formed by Lenses » Concave Lens

MCQ▾

Question

Concave lens is also called as:

Choices

Choice (4) Response

a.

Diverging lens

b.

Diverging lens & Converging lens

c.

Converging lens

d.

All of the above

Question number: 14

» Light » Light » Light Travels Along a Straight Line

MCQ▾

Question

Rectilinear propagation of light is:

Choices

Choice (4) Response

a.

Straight line propagation of light

b.

A highly polished reflecting surface

c.

An arrangement to combine colours

d.

None of the above

Question number: 15

» Light » Spherical Mirrors » Real Image and Virtual Image

MCQ▾

Question

Images used in movie projector are:

Choices

Choice (4) Response

a.

Real images

b.

Virtual images

c.

Obtained on a screen

d.

Both a. and c. are correct

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