Question

aconvexmirror having radius of curvature 3 mid fitted as a rearveiw mirror in a bus .find the position ,nature,magnification of the image of a car standing behind the bus at 6 m from the mirror ( class 10 science,chap10)
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Answer 1

Answer:

u = -6 m

r = 3 m

f = 3/2 m (by New Cartesian Sign Convention Rules)

1/f = 1/v + 1/u (by Mirror Formula)

2/3 = 1/v + 1/-6

1/v = 2/3 + 1/6 = 5/6

v = 6/5 m = 1.2 m

Magnification = -v/u = -1.2/-6 = 1/5 = +0.2

Nature of image ---> Virtual, Erect

Position of Image -----> 1.2 metres (behind the mirror)

Explanation:

Here, u is position of image from mirror

v is position of image from the mirror

f is focal length

m is metre

r is radius of curvature