Question

An object of 4 cm forms image at 7 cm by reflection through concave mirror of focal length 6cm. find position of object and nature of image and magnification

Answer 1

Answer:

u = -4 cm

v = +7 cm

f = -6 cm

(i) Position of object is given as -4 cm( u = -4 cm)

(ii) Nature of image is virtual.

(iii) Magnification :-

m = -v/u

m = -(+7)/-4

hence, magnification is +7/4