A concave spherical mirror has a radius of curvature of 12.0 cm . Calculate the

Question

A concave spherical mirror has a radius of curvature of 12.0 cm .

Calculate the location of the image formed by an 9.00-mm-tall object whose distance from the mirror is 24.0 cm .

Calculate the location of the image formed by an 9.00-mm-tall object whose distance from the mirror is 12.0 cm .

Calculate the location of the image formed by an 9.00-mm-tall object whose distance from the mirror is 3.00 cm .

Calculate the location of the image formed by an 9.00-mm-tall object whose distance from the mirror is 10.0 m .

Explanation / Answer

focal length f = 12 / 2 = 6 cm

here by using the mirror formula

1 / f = 1 / u + 1 / v

1 / 6 - 1 / 24 = 1 / v

v = 8 cm

b)

by using same formula

1/v = 1 / 6 - 1 / 12

v = 12 cm

c)

1 / v = 1 / 6 - 1 / 3

v = -6 cm

d)

1 / v = 1 / 6 - 1 / 1000

v = 6.036 cm

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