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26-03-2016
Physics

Answered

When an object is placed 8 millimeters from a concave spherical mirror, a clear image can be projected on a screen 16 millimeters in front of the mirror. If the object has a height of 4 millimeters, the height of the image is

A2 millimeters.
B4 millimeters.
C8 millimeters.
D12 millimeters.

Verified Answer :

Anonymous Anonymous

28-03-2016

The question can be answered by ratio and proportion by similar triangles u/v=Hi/Ho

8 : 16 = x : 4
8 / 16 = x / 4
16x = 32
x = 2

So the correct answer is letter A. 2 millimeters.

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