The focal length of a concave mirror is 12 cm.Where should an object of length 4 cm be placed,so that a real image of 1 cm length is formed ?
A. 48 cm
B. 3 cm
C. 60 cm
D. 15 cm
Answer:C
The focal length of a concave mirror is 12 cm.Where should an object of length 4 cm be placed,so that a real image of 1 cm length is formed ?
A. 48 cm B. 3 cm C. 60 cm D. 15 cm