A spherical mirror produces an erect image of an object 50% reduced, if its focal length is 20cm then calculate the object distance , image distance and predict the type of mirror it is.

Open in App

Solution

Dear, Given Erect image and diminished so the mirror is convex mirror, so m= 1/2 = -v/u , U = -2V , use mirror formula and put u = -2v and f= +20 ,

Suggest Corrections

Similar questions

Q. A spherical mirror forms an image of size

3

times that of the object. If the focal length of the mirror is

- 24 cm

, then the object distance may be:

An object is placed at a distance of 25 cmfrom a spherical mirror and its image is formed behind the mirror at the distance of 5 cm.Find the focal length of mirror.Name the type of mirror and one of its uses.

Q. A spherical mirror forms an image of magnification

3

. The object distance, if focal length of mirror is

24 c m

, may be

Q. A spherical mirror forms an image of magnification

3

for a real object. If the focal length of the mirror is

24 cm

, then the object distance may be

Q. The focal length of a concave mirror is

20

cm. An object is placed at distance

20

cm from mirror. Its image will be formed

Join BYJU'S Learning Program