(c) Fig. 2 shows the same pool and the same points A, B, S and T. The critical angle for the water is 50
T.
water
55°
39°
B
A
Fig. 2
(in) 1
A beam of light is directed upward from A to S. Describe what happens to the
beam at S.

Caused conformity rates to go down. apex ; )

1. electricity2. discharge: )

The correct option is this: the sound waves from the two trombones have slightly different frequencies.from the question given above, we are told that the loudness of the sounds were increasing and decreasing, this is because the frequencies of the two sounds are different. the means that the number of waves that pass a fixed point in a given amount of time differ for both sounds.