What is the nature of a mirror having a focal length of, +10 cm ?

What is the nature of the mirror having focal length - 15 cm?

What kind of mirror can have a focal length of, -20 cm ?

(a) What is focal length of a convex mirror of radius of curvature 20 cm ? (b) What is radius of curvature of a mirror of focal length - 50 cm ?

(a) What is focal length of a convex mirror of radius of curvature 20 cm ? (b) What is radius of curvature of a mirror of focal length - 50 cm ?

Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3rd of the size ? At what distance the object has been placed from the mirror ? What is the nature of the image and the mirror ?

Size of image of an object by a mirror having a focal length of 20 cm is observed to be reduced to 1/3 rd of the size ? At what distance the object has been placed from the mirror ? What is the nature of the image and the mirror ?

A rod AB = 10 cm in length is placed along the principal axis of a concave mirror having focal length equal to 10 cm as shown in Fig. The distance PB = 20 cm . What is the length of the image of the rod AB ?