Question

A black spot on the surface of a glass sphere of 3/2
refractive index is viewed from diametrical
opposite position. It appears to be at a distance
of 10 cm from spot. Diameter of sphere is
(1) 5 cm
(2) 10 cm
(3) 15 cm
(4) 20 cm
nnidan mu
C​

Answer 1

Answer:

diameter of a sphere is 15 CM

is it right

Answer 2

Answer:

answer option a

hope answer is correct