Physics, asked by MeenakshyRajeev, 4 months ago

the radius of curvature of a concave mirror forming a real image magnified twice when an object is placed 12 CM away from the pole is:
(a) 8cm
(b) 16cm
(c) 48cm
(d) 24cm

Answers

Answered by devanshushah69

1

Answer:

m=-2

m=-v/u

v=2u

by mirror's formula

1/u+1/v=1/f

1/u+1/v=2/R

1/u+1/2u=2/R

(3/2u)=2/R

(3/4×12)=1/R

1/16=1/R

R=16cm

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