EASY
7th CBSE
IMPORTANT
Earn 100

What is a virtual image?

Important Questions on Light: Reflection, Mirrors and Lenses

EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 3
Which mirror is used as a rear view mirror in a vehicle?
MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 4
Give two uses of concave mirrors.
EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 1

Convex lens is also called converging lens.

EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 2

A convex lens is a piece of glass with two convex surfaces.

MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 3

When an object is placed between F and 2F of a convex lens, the image is erect, virtual, and enlarged.

MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 4

A concave lens always forms a diminished, erect and virtual image of the object regardless of the distance between the object and the lens.

MEDIUM
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Try out>Q 5

A concave lens is used in a projector to converge the incident rays.

EASY
7th CBSE
IMPORTANT
Focus Science in Everyday Life>Chapter 15 - Light: Reflection, Mirrors and Lenses>Exercise>Q 1
A plane mirror always forms :