Geometrical OpticsHard
Question
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 -
Options
A.5 cm/sec.
B.12 cm/sec.
C.4 cm/sec.
D.9 cm/sec.
More Geometrical Optics Questions
A ray of light propagates from glass (refractive index = 3/2) to water ( refractive index = 4/3). The value of the criti...A convex lens of Focal length of 40cm is in contact with a concave lens of focal length 25cm. The power of the combinati...Two plane mirrors M1 and M2 are inclined to each other at 70o A ray imminent on the mirror M1 at an angle falls on M2 an...A transparent solid cylindrical rod has a refractive index of . It is surrounded by air. A light rayis incident at the m...A glass prism of refractive index 1.5 is immersed in water (refractive index 4/3). Light beam incident normally on the f...