Question

Two pulses having equal and opposite displacements moving in opposite directions overlap at t= t1, s. What
will be the resultant displacement of the waves at t = t1 s?​

Answer 1

Answer:

Explanation:

stationary waves

Answer 2

Given:

Two pulses having equal and opposite displacements moving in opposite directions overlapping at t= t1 seconds

To find:

The resultant displacement of the waves at t = t1 seconds

Solution:

• Let one of the waves moving in the +x direction = W1
• Let the wave moving in the opposite i.e. -x direction = W2

It is given to us that both the waves are equal in nature

• Let amplitude of W1 at t1 seconds = A1
• Let amplitude of W2 at t1 seconds = A2

d = diplacement at t1 seconds = A1 + A2 = A1 + (-A1) = 0  ( As both the waves W1 and W2 are equal and opposite in nature)

Thus, the resultant displacement of the two waves at t=t1 seconds will be 0.