MEDIUM
8th ICSE
IMPORTANT
Earn 100

Why does a pencil appear to be bent when placed in a beaker of water?

Important Questions on Light Energy

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
How is a rainbow formed?
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
A ray of light is incident at an angle i on the surface of a glass slab. If its angle of refraction inside the glass block is r, then find the relation between i and r assuming that light enters from the air and emerges into air.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
Describe dispersion of white light. Why do different colours of light bend to different extents when passed through a prism?
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
Explain why two prisms placed next to each other such that their adjacent faces are parallel, behave like a glass slab.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q H
Give reason for the following: Concave mirrors are also known as converging mirrors.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q H
Give reason for the following.
Concave mirrors used by dentists.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q H
Give a reason for the following. 
Convex mirrors preferred over plane mirrors as rearview mirrors in cars.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q H
Give reason for the following.
Stars twinkle in the sky.