A point object is moving on the principal axis of a concave mirror of focal length 24 cm towards the mirror. When it is at a distance of 60 cm from the mirror, its velocity is 9 cm/sec. What is the velocity of the image at that instant_________
A. 5 cm/sec.
B. 12 cm/sec
C. 4 cm/sec
D. 9 cm/sec
Answer:C
A point object is moving on the principal axis of a concave mirror of focal length 24 cm towards the mirror. When it is at a distance of 60 cm from the mirror, its velocity is 9 cm/sec. What is the velocity of the image at that instant_________
A. 5 cm/sec. B. 12 cm/sec C. 4 cm/sec D. 9 cm/sec