A long sighted person has a least distance of distinct vision of 50 cm. He wants to reduce to 25 cm. He should use a

concave lens of focal length 50 cm

concave lens of focal length 25 cm

convex lens of focal length 50 cm

convex lens of focal length 25 cm

A long sighted person has a least distance of distinct vision of 50 cm

1.	A long sighted person has a least distance of distinct vision of 50 cm. He wants to reduce to 25 cm. He should use a
A.	concave lens of focal length 25 cm
B.	convex lens of focal length 50 cm
C.	concave lens of focal length 50 cm
D.	convex lens of focal length 25 cm
Answer» C. concave lens of focal length 50 cm