EASY
10th CBSE
IMPORTANT
Earn 100

Define aperture of the lens.

Important Questions on Light Reflection and Refraction

EASY
10th CBSE
IMPORTANT
Define the centre of curvature of the lens.
EASY
10th CBSE
IMPORTANT
Define the principal axis.
EASY
10th CBSE
IMPORTANT
Define principal focus of convex lens.
MEDIUM
10th CBSE
IMPORTANT
State and explain the rules which are used to draw ray diagrams using a concave mirror.
MEDIUM
10th CBSE
IMPORTANT
State lens formula. What is its use? What is meant by magnification? How does it explain whether the image is inverted, erect, magnified or diminished?
HARD
10th CBSE
IMPORTANT
Describe an experiment to demonstrate image formation by a concave mirror for different object positions.
EASY
10th CBSE
IMPORTANT
Give two uses of concave mirror.
EASY
10th CBSE
IMPORTANT
Give two uses of a concave lens.