Q)
(chatquestion)...19. As shown in arrangement, waves with identical wavelengths
and amplitudes that are initially in phase travel through
different media, ray 1 travels through air and ray 2 through
a transparent medium for equal length L, in four different
situations. In each situation the two rays reach a common
point on the screen.
Ray 2
Ray 1–
The number of wavelengths in length L is N, for ray 2 and
N, for ray 1. In the following table, values of N, and N, are
given for all four situations. The order of the situations
according to the intensity of the light at the common point
in descending order is
Situations
2
3
4
2.25
1.80
3.00
3.25
N2
(a) I-1>1,>I
(c) I>1,>I3>I,
2.75
2.80
3.25
4.00
(b) I,>I3=14>I,
(d) 1,>I;=14>I¡
...
