Question

Explain the formation of stationary waves in brief. Hence obtain the equation of stationary waves.

Answer 1

Stationary waves are formed by the encounter of forwarding wave and reflected wave.

Explanation:

• Stationary waves are formed by an analytical method.
• A stationary wave has nodes and antibodies which are placed at the same distance and have equal spaces between them.
• The stationary are formed when the amplitude and frequency are moving in the opposite direction but along the same line.  
• In general stationary waves are formed by the encounter of forwarding wave and reflected wave.
• Equation of stationary waves is:
• y = y 1  + y  2  = A sin (kx - wt) + A sin (kx + wt)