EASY
10th Telangana Board
IMPORTANT
Earn 100
Write the lens maker’s formula and explain the terms in it.
Important Questions on Refraction of Light at Curved Surfaces
HARD
10th Telangana Board
IMPORTANT
How do you verify experimentally that the focal length of a convex lens is increased when it is kept in water?
MEDIUM
10th Telangana Board
IMPORTANT
How do you find the focal length of a lens experimentally?
EASY
10th Telangana Board
IMPORTANT
Draw ray diagrams for the following position of a convex lens and explain the nature and position of image.
Object is placed at (center of curvature of second lens)
EASY
10th Telangana Board
IMPORTANT
Draw ray diagrams for the following position of a convex lens and explain the nature and position of image.
Object is placed between (focus) and optic centre P.
HARD
10th Telangana Board
IMPORTANT
Man wants to get a picture of a zebra. He photographed a white donkey after fitting a glass, with black stripes on to the lens of his camera. What photo will he get? Explain.
MEDIUM
10th Telangana Board
IMPORTANT
Two converging lenses are to be placed in the path of parallel rays so that the rays remain parallel after passing through both lenses. How should the lenses be arranged? Explain with a neat ray diagram.
MEDIUM
10th Telangana Board
IMPORTANT
The focal length of a converging lens is . A height object is from the lens. Where will the image be formed and what kind of image is it? And also find the height of the image.
MEDIUM
10th Telangana Board
IMPORTANT
A double convex lens has two surfaces of equal radii and refractive index. Find the focal length ?
