MPSC PYQScienceLightenglish
21) A 10 cm long stick is placed at 20 cm distance from the pole of a concave mirror having focal length of 10cm. What is the length of the image obtained ? 1) 10cm 2) 15cm 3) 7.5cm 4) 20cm
A.10cm
B.15cm
C.7.5cm
D.20cm
Correct answer: A