An object is p = 48.5 cm in front of a concave mirror. Its real image...

Question

Question

An object is p = 48.5 cm in front of a concave mirror. Its real image height is 4 times larger than the object height.

An object is p = 48.5 cm in front of a concave mir

What is the radius of curvature of the mirror? Answer in units of cm.

Answer 1

Answer #1

h_i/h_o = d_i/d_o

=> 4 = d_i/48.5

=> d_i = 194 cm

1/f = 1/d_i + 1/d_o

=> 1/f = 1/194 + 1/48.5

=> f = 38.8 cm

Radius of curvature = R =2*focal length

R = 2*38.8 = 77.6 cm

Answer 2

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