MEDIUM
10th CBSE
IMPORTANT
Earn 100

A concave mirror forms a real image of height 8 cm of an object placed at a distance of 30 cm from the mirror. If the height of the object is 2 cm, find the position of the image and the focal length of the mirror.

Important Questions on Light - Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 38
A 2 cm-high object is placed at a distance of 8 cm from a converging mirror. If the image produced is virtual and of 3 cm height, find the position of image and the focal length of the mirror. Draw a ray diagram to illustrate the situation.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 39
At what distance from a converging mirror of focal length 8 cm should an object 3 cm long be kept to get an erect image of  9 cm long?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 40
A 2 cm tall object is placed in front of a concave mirror of focal length 20 cm, at a distance of 16 cm from it. Find the position, nature and size of the image formed.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 41
A concave mirror forms a real image three times the size of an object placed at a distance of 30 cm from it. What is the focal length of the mirror? At what distance should the object be placed in front of the same mirror to produce a virtual image three times the size of the object?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 42
At what distance should an object be placed from the pole of a converging mirror of focal length 16 cm to form a real image that is half the size of the object? 
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 43
The magnification produced is - 0.2 when an object is placed at a distance of 100 cm from a converging mirror. Where should the object be placed to get a magnification of -0.5 ?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 44
An object is placed 30 cm from a convex mirror. Its image is formed 18 cm from the mirror. What are the focal length of the mirror and the magnification produced?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 45
An object of size 6 cm is placed at 24 cm in front of a concave mirror of focal length 16 cm. At what distance from the mirror should a screen be placed, so that a sharp focused image can be obtained? Also, find the size and the nature of the image.