A rectangular block of glass ABCD has a refractive index
Question:

A rectangular block of glass ABCD has a refractive index 1.6. A pin is placed midway on the face AB. When observed from the face AD, the pin shall

A B

DC

(a) appear to be near A.

(b) appear to be near D.

(c) appear to be at the centre of AD.

(d) not be seen at all.

Solution:

(a) appear to be near A.

(d) not be seen at all.

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