PLEASE SHOW WORK!!! NO WORK NO POINTS!!!! An object 4.0 cm in height is placed 1

Question

PLEASE SHOW WORK!!! NO WORK NO POINTS!!!!

An object 4.0 cm in height is placed 13.0 cm in front of a concave mirror with a focal length of 15.0 cm. What is the position of its image in relation to the mirror and what are its characteristics?

A. 97.3 cm on the other side of mirror, virtual, 7.5 times bigger

B. 18.0 cm on same side of mirror, virtual, 2.25 times bigger

C. 83.0 cm on the other side of mirror, real, 6.0 times bigger

D. 10.0 cm on the other side of mirror, virtual, 10 times bigger

E. 10.0 cm on same side of mirror, real, 6.0 times bigger    

Explanation / Answer

1/u + 1/v = 1/f

1/-13 + 1/v = 1/-15

1/v = 1/-15 + 1/13

v = 97.5 cm

m = -v/u = - 97.5/-13 = 7.5

therefore,

A. 97.3 cm on the other side of mirror, virtual, 7.5 times bigger

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