Figure shows a concave mirror of focal length 10 cm. A point object on – InterviewSolution

1.	Figure shows a concave mirror of focal length 10 cm. A point object on the principal axis at a distance of 15 cm from the pole starts moving away from the pole and its position-time relation is given by x=−(5t2+10t+15) cm/s. The speed of the image at t=1 s will be
Answer» Figure shows a concave mirror of focal length $10 cm$ . A point object on the principal axis at a distance of $15 cm$ from the pole starts moving away from the pole and its position-time relation is given by $x = - (5 t^{2} + 10 t + 15) cm/s$ . The speed of the image at $t = 1 s$ will be

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