Optics Ques 196
Passage
The figure shows a surface $X Y$ separating two transparent media, medium-1 and medium-2. The lines $a b$ and $c d$ represent wavefronts of a light wave travelling in medium-1 and incident on $X Y$. The lines ef and $g h$ represent wavefronts of the light wave in medium-2 after refraction.
Light travels as a wave
$(2007,4 M)$
(a) parallel beam in each medium
(b) convergent beam in each medium
(c) divergent beam in each medium
(d) divergent beam in one medium and convergent beam in the other medium
Show Answer
Answer:
Correct Answer: 196.(a)
Solution:
Wavefronts are parallel in both media. Therefore, light which is perpendicular to wavefronts travels as a parallel beam in each medium.
BETA
