Question

A convex lens of focal length 20 cm and a concave mirror with radius of curvature of 16 cm are
placed as shown in figure, at a distance of 25 cm from each other. A luminous object is placed at a
distance of 25 cm from the lens. Where will the image be found and what would be its magnification?
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Answer 1

• where is the pic man?
• According to the Q.,..... respect to convex mirror....

f=20 ;r'=16; u(obj dist.)=25

so the Image is formed at

$\frac{1}{v } + \frac{1}{u} = \frac{1}{f}$

(where v denotes image dist.) so v=100

1. magnification would be...
2. $\frac{v}{u} = m$
3. hence,m= +4

hope it will help you ....TQ for supporting me...❤️