A particle is moving towards a concave mirror of focal length 30 cm along it's axis with a constant velocity of 4 cm/s . Find the velocity of image when object is at 90 cm from a mirror.

Asked by Shreyash Taori | 27th Nov, 2013, 08:46: PM

Expert Answer:

Answered by Faiza Lambe | 28th Nov, 2013, 10:41: AM

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