Question

a concave mirror produces 3 times enlarged image of an object placed at 10 cm in front of it.Calculate radius of curvature of mirror

Answer 1

After about a week the seeds began to sprout and grow into a tree with these ... (Papaya - 03a) At the very top of the papaya tree trunk, we can see the new leaves  ...

Answer 2

Answer:

Radius of Curvature = (-30) cm

Explanation:

GIVEN:-

       Magnification = 3

       Distance of object (u) = (-10)cm

BY MAGNIFICATION

M = -v/u

3 = - v/-10

v = 30 cm ( the distance between the image and the mirror is 30 cm)

BY MIRROR FORMULA

1/v + 1/u = 1/f

1/30 - 1/10 = 1/f

FOCAL LENGTH = (-15) cm

WE KNOW THAT

f = r/2

-15 = r/2

RADIUS OF CURVATURE IS (- 30 ) cm

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