A longitudinal wave is made, when
Answer / rajasekar
(1) Two stationary waves equal frequency and amplitude meet
in opposite directions
(2) Two stationary waves of equal frequency and amplitude
meet in the same direction
(3) Two stationary waves of equal frequency but different
amplitudes meet in opposite directions
(4) Two stationary waves of equal amplitude but different
frequency meet in opposite directions
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A number of children are standing in a circle. They are evenly spaced and the 6th child is directly opposite the 20th child. How many child are there altogether
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5+3+2=151012 9+2+4=183662 5+4+5=202504 7+2+5=?
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Classic: If a bear walks one mile south, turns left and walks one mile to the east and then turns left again and walks one mile north and arrives at its original position, what is the color of the bear.
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