Define the term principal axis of a lens.

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 10

Explain optical centre of a lens with the help of proper diagram(s).

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 12

State the condition when a lens is called an equi-convex or equi-concave.

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 13

Define the term principal foci of a convex lens and illustrate your answer with the aid of proper diagrams.

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 14

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

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 15

Draw a diagram to represent the second focus of a concave lens.

EASY

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 16

Draw a diagram to represent the second focus of a convex lens.

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 17

A ray of light, after refraction through a concave lens emerges parallel to the principal axis. Draw a ray diagram to show the incident ray and its corresponding emergent ray.

MEDIUM

10th ICSE

IMPORTANT

Selina Icse Concise Physics For Class 10>Chapter 5 - Refraction Through a Lens>EXERCISE-5(A)>Q 17

A ray of light, after refraction through a concave lens emerges parallel to the principal axis. The incident ray when produced meets the principal axis at a point. Name the point.