MEDIUM
10th ICSE
IMPORTANT
Earn 100

Define the term principal foci of a concave lens and show them with the help of proper diagrams.

Important Questions on Refraction Through a Lens

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 21
Define the term focal length of a lens.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 22
What do you mean by the focal plane of a lens?
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 23
State the condition for the following:

A lens has both its focal lengths equal.

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 23
State the condition for the following:

A ray passes undeviated through the lens.

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 25

The diagram below shows a lens as a combination of a glass block and two prisms.

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Name the lens formed by the combination.

EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 26

The diagram below shows a lens as a combination of a glass block and two prisms.

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Name the lens formed by the combination.

MEDIUM
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 3
Distinguish between real and virtual image.
EASY
10th ICSE
IMPORTANT
Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(B)>Q 4

Study the diagram given below. Name the lens LL'.

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