A point object `O` is kept at a distance `OP=u` The radius of curvature of the spherical surface APB is `CP=R` The refractive index of the media are `n_1` and `n_2` which are as shown in the diagram . Then,
(A) if `n_1gtn_2`, image is virtual for all values of u
(B) if `n_2=2n_1` image is virtual when `Rgtu`
(C) The image is real for all values of `u`, `n_1` and `n_2` here, the correct statements is/are

Options

A. Only (2)
B. Both (1) and (2)
C. Only (1)
D. (1), (2) and (3)

Answer

B

Explanation

`(n_(2))/(v) - (n_(1))/(u) = (n_(2) - n_(2))/(R )`
(1) and (2) statement are correct.