MEDIUM
8th ICSE
IMPORTANT
Earn 100

Draw ray diagrams of the behaviour of a ray of light passing through two prisms placed next to each other such that their adjacent faces are parallel.

Important Questions on Light Energy

EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q A
A concave mirror is also known as a diverging mirror.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q A
The focal length of a spherical mirror is twice the radius of curvature.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q A
While sketching ray diagrams, the object should always be kept in front of the polished surface.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q A
A ray of light incident at the pole of a spherical mirror is reflected along a path, making the same angle with the principal axis, as the incident ray does.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q A
A ray of light parallel to the principal axis, after reflection from a concave mirror, will pass through the centre of curvature.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q B
A _____ image can be obtained on a screen.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Check your progress>Q B
The _____ of a mirror denotes its size(aperture/ centre of curvature/focal length).
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 5 - Light Energy>Think and answer>Q 2
An object is placed at the centre of curvature of a concave mirror of radius of curvature 20 cm and focal length 10 cm. At what distance from the pole will its image be formed?