HARD
10th Andhra Pradesh Board
IMPORTANT
Earn 100

Is the point and centre of curvature the same. Explain.
Important Questions on Refraction of Light at Curved Surfaces
EASY
10th Andhra Pradesh Board
IMPORTANT
A student did an experiment with a convex lens. He put an object at different distances and from the lens. In each case he measured the distance of the image from the lens. His results were and , respectively. Unfortunately his results are written in wrong order.
Which of the object distances gives the biggest image?

EASY
10th Andhra Pradesh Board
IMPORTANT
Which causes more bending (or more refraction) of light rays passing through it: a convex lens of long focal length or a convex lens of short focal length?

MEDIUM
10th Andhra Pradesh Board
IMPORTANT
An object is placed at a distance of from a convex lens whose focal length is . Find the distance of the image.

EASY
10th Andhra Pradesh Board
IMPORTANT
Write the relation between and of a thin lens.

MEDIUM
10th Andhra Pradesh Board
IMPORTANT
An object is placed at a distance of from a concave lens of focal length . Find the position of the image and discuss its nature.

MEDIUM
10th Andhra Pradesh Board
IMPORTANT
An object is placed before a concave lens of focal length . The size of the image formed by the lens is half the size of the object. Calculate the distance of the object from the lens.

HARD
10th Andhra Pradesh Board
IMPORTANT
An object is placed from a screen. Where should you place a convex lens of focal length to get the image of the object on the screen?

EASY
10th Andhra Pradesh Board
IMPORTANT
An object is kept at a distance of from a convex lens of focal length . A plane mirror is placed at a distance of on the other side of the lens, as shown in the figure. The ray diagram is also shown. The eye receives the rays after they are reflected from the plane mirror. The eye sees the final image behind the plane mirror. How far behind the plane mirror does this image form?
