Question

A small object is placed at right angles to the axis of a fixed concave mirror so as to form (i) a

real (ii) a virtual image, twice as long as the object. If the radius of curvature of mirror is 40cm,

What is the distance between the two images?​

Answer 1

Answer:

Top answer · 38 votes

Given,Focal length, f = 50 cm Magnification, m = 2 m = vu = 2 v = 2u From mirror formula, 1f = 1v + 1u 1f = 12u + 1u u = 3f2 = 3 × 502 = 75 cm ...  More