A point object O is kept at a distance of OP = u. The radius of curvature of the spherical surface APB is CP = R. The refractive indices of the media are $n_1$ and $n_2$ respectively, as shown in the diagram. Then, a) If $n_1 > n_2$, the image is virtual for all values of 'u'. b) If $n_2 = 2n_1$, the image is virtual when $R > u$. c) The image is real for all values of $u$, $n_1$, and $n_2$. Here, the correct statement/s is/are ……………

Question

A point object O is kept at a distance of OP = u. The radius of curvature of the spherical surface APB is CP = R. The refractive indices of the media are $n_1$ and $n_2$ respectively, as shown in the diagram. Then,

a) If $n_1 > n_2$, the image is virtual for all values of 'u'.

b) If $n_2 = 2n_1$, the image is virtual when $R > u$.

c) The image is real for all values of $u$, $n_1$, and $n_2$.

Here, the correct statement/s is/are ……………

only a)

a), b) and c)

only b)

both a) and b)

Solution

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