Physics, asked by itumbasar8551, 9 months ago

Revanth noticed while holding a concave mirror in sunlight that a small and brightest spot is forming on the paper which is placed at distance 30 cm from it . Then what is the focal length of the mirror

Answers

Answered by JasmeenJassi
0

Answer:

since the light is coming from infinity, the image is formed at the Focus. Therefore, the focal length is -30cm

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