Question

focal length of convex mirror is 20cm and an object is placed at 30cm find image distance​

Answer 1

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The final answer would be negative since, the image type would be virtual. The sign of of the value of the focal length was changed to negative (-) since the mirror used was a CONVEX mirror. The location of the image is between the focal point(F) and the vertex

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When an object is placed 20 cm from a concave mirror a real image magnified three times is formed. When an object is placed 20 cm from a concave mirror, a real image magnified three times is formed

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Answer 2

Answer:

$60 \: cm$

Explanation:

Image distance,

v = ?

$v= \frac{600}{10}$

=60 cm.