Physics-
General
Easy
Question
The rope shown at an instant is carrying a wave travelling towards right, created by a source vibrating at a frequency n. Consider the following statements
I. The speed of the wave is 
II. The medium at 
will be in the same phase as dafter 
III. The phase difference between b and 
is 
Which of these statements are correct
- I, II and III
- II only
- I and III
- III only
The correct answer is: I and III
Speed = 
= 
Path difference between 
and is 
So the phase difference =
. Path difference
= 
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