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 
. Consider the following statements
I) The speed of the wave is 
II) The medium at 
will be in the same phase as 
after 
III) The phase difference between 
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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