Does sound follow the same laws of reflection as light does? Explain.
Answer
Yes, sound follows the same laws of reflection as light.
Thus, in a sound wave
- Incident Sound Wave,Reflected Sound Wave and Normal Sound Wave all lie on same plane
- Angle of Incidence of Sound is equal to Angle of Reflection of Sound
This can be proved by experiment
Experiment to Show Reflection of Sound
Make 2 pipes of Chart Paper
Arrange them on Table near wall
Keep a clock near one of pipes
Try to hear from other pipe
Adjust position of second pipe till sound is largest
We draw a line perpendicular to point where 2 pipes meet
This is normal line
We Measure the angle at this place
At this position ,we observe that
Angle of Incidence of Sound is equal to Angle of Reflection of Sound
Also, Incident Sound Wave, Reflected Sound Wave and Normal Sound Wave all lie on same plane (which is the table in this case)
Note : If it is a 2 mark question, write explanation but don’t write acitivity. If it is a 4 or 5 mark question, write explanation and activity both
