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Light Reflection and Refraction
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13/08/2021 2:21 pm
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An object 20 cm from a spherical mirror gives rise to a virtual image 15 cm behind the mirror. Determine the magnification of the image and the type of mirror used.
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13/08/2021 2:23 pm
u = -20 cm
v = 15 cm (virtual image)
We know that
m = - \(\frac{v}{u}\) = -\(\frac{15}{-20}\)
= 0.75
The mirror used of convex type.