EASY
8th ICSE
IMPORTANT
Earn 100

What is meant by the refractive index of a medium with respect to air?

Important Questions on Light Energy

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
What do you mean by a spherical mirror? Distinguish between a concave mirror and a convex mirror.
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
State the rules for drawing ray diagrams for spherical mirrors. Support them with ray diagrams.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
Name the type of a spherical mirror which always forms a virtual, erect and diminished image. What is the position of such type of images with respect to the mirror? Draw a ray diagram for the same.
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Exercises>Q G
Why does a pencil appear to be bent when placed in a beaker of water?
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.