Question

when an object placed at distance of 30cm from a convex mirror, the image distance is 10cm. If the object is moved with a speed of 9cm s-1,find the speed with which the image moves. 1mark Q
please can anyone tell me fast...​

Answer 1

Answer:

singh video very video HDTV de bbc bhbb B. G jjjjskdudjdhdhdhfbnfkr99283738383088263974

Answer 2

Answer:

an object placed at distance from a convex mirror equal to 30 cm

and a speed equal to 9 centimetre per second

now ,

the image distance equal to 10 centimetre

and a speed =?

according to question

9cm/sec×1/30cm=x/10cm

9 centimetre per second into 10 centimetre equal to 30 into x. (by cross multiplication)

90cm^2=30x

x=90/30

x=3cm/sec