Question
Physics Question on spherical lenses
An object is moving towards a concave mirror of length 24 cm. When it is at a distance of 60 cm from the mirror its speed is 9cm/s, the speed of its image at that instantis
A
4 cm/s towards the mirror
B
9 cm/s towards the mirror
C
4 cm/s away from the mirror
D
9 cm/s away from the mirror
Answer
4 cm/s away from the mirror
Explanation
Solution
Answer (c) 4 cm/s away from the mirror