when an object is 15 cm in front of a concave spherical mirror, the image is for
ID: 1400391 • Letter: W
Question
when an object is 15 cm in front of a concave spherical mirror, the image is formed 5.0 cm in front of the mirror. what is the focal length of the mirror? when an object is 15 cm in front of a concave spherical mirror, the image is formed 5.0 cm in front of the mirror. what is the focal length of the mirror? when an object is 15 cm in front of a concave spherical mirror, the image is formed 5.0 cm in front of the mirror. what is the focal length of the mirror? when an object is 15 cm in front of a concave spherical mirror, the image is formed 5.0 cm in front of the mirror. what is the focal length of the mirror?Explanation / Answer
u = -15 cm
v = -5 cm
So, 1 / u + 1 / v = 1 / f
So, f = -3.75 cm
Focal length = 3.75 cm
IT is concave mirror..so we take it as -3.75 cm
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