a spherical mirror forms virtual and diminished image when an object is kept at 5 cm in front of it if the focal length of the mirror is 2.5 find the height or image if the height of object in 6mm.
Add an Answer
More Questions From This User See All
Answers & Comments
Explanation:
Virtual, diminished image is formed by a convex mirror.
u = -5cm. f = +2.5 cm. v = +ve.
1/f = 1/v + 1/u
1/v = 1/f - 1/u
1/v = 1/2.5 - (-1/5) = 3/5
v = 5/3 cm
magnification= -v/u = 1/3
ere t virtual diminished image.
Object size = 6mm.
image size= 6*1/3 = 2 cm.