A concave mirror of focal length 20 cm is to be used as a shaving mirror. Which of the following is the suitable object distance from the mirror ?
(i)10 cm (ii)20 cm (iii) 30 cm.

From a concave mirror of focal length 20 cm. match the following:

The image formed by a convex mirror of focal length 20 cm is a quarter of the object. What is the distance of the object from the mirror?

A concave mirror of focal length 10cm is placed in front of a convex mirror of focal length 20 cm. The distance between the two mirrors is 20cm. A point object is placed 5cm from the concave mirror. Discuss the formation of image.

A concave mirror of focal length 10cm is placed in front of a convex mirror of focal length 20 cm. The distance between the two mirrors is 20cm. A point object is placed 5cm from the concave mirror. Discuss the formation of image.

A concave mirror has a focal length of 25 cm. At which of the following distace should a person hold his fce from this concave mirror so that it may act as a shaving mirror ? (a) 45 cm (b) 20 cm 25 cm (c ) 25 cm (d) 30 cm Give reason for your choice.

Object AB is placed on the axis of a concave mirror of focal length 10cm. End A of the object is at 30cm from the mirror. Find the length of the image a. if length of object is 5cm. b. if length of object is 1 mm.

Object AB is placed on the axis of a concave mirror of focal length 10cm. End A of the object is at 30cm from the mirror. Find the length of the image a. if length of object is 5cm. b. if length of object is 1 mm.