Fig. shows a surface XY separating two transparent media, medium 1 and medium 2. Lines ab and cd represent wavefronts of a light wave travelling in medium 1 and incident on XY. Line ef and gh represent wavefront of the light wave in medium 2 after rafraciton. The phase of the ligth wave at c, d, e, and f are `phi_(c)`, phi_(d), `phi_(e)` and `phi_(f)`, respectively. It is given that `phi_(c ) != phi_(f)`. ThenA. `phi_(c)`cannot be equal to`phi_(d)`B. `phi_(d)` can be equal to`phi_(c)`C. `(phi_(d)-phi_(f))` is equal to`(phi_(c)-phi_(e))`D. `(phi_(d)-phi_(c))` is not equal to`(phi_(f)-phi_(e))`

Fig. shows a surface XY separating two transparent media, medium 1 and

1.	Fig. shows a surface XY separating two transparent media, medium 1 and medium 2. Lines ab and cd represent wavefronts of a light wave travelling in medium 1 and incident on XY. Line ef and gh represent wavefront of the light wave in medium 2 after rafraciton. The phase of the ligth wave at c, d, e, and f are `phi_(c)`, phi_(d), `phi_(e)` and `phi_(f)`, respectively. It is given that `phi_(c ) != phi_(f)`. ThenA. `phi_(c)`cannot be equal to`phi_(d)`B. `phi_(d)` can be equal to`phi_(c)`C. `(phi_(d)-phi_(f))` is equal to`(phi_(c)-phi_(e))`D. `(phi_(d)-phi_(c))` is not equal to`(phi_(f)-phi_(e))`
Answer» Correct Answer - C

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