Physicshard · Past Paper
When a wave reflects from a rigid boundary, there is a phase change of:
A0 degrees
B90 degrees
C180 degrees
D360 degrees
✓ Correct Answer: C — 180 degrees
Reflection of a wave from a denser/rigid boundary results in a phase reversal of 180 degrees (pi radians).
Share this question
More from Physics
- A convex lens is also known as a:
- What is the value of acceleration due to gravity (g) at the center of the Earth?
- Calculate the resistance of a lamp that draws 0.5 A current from a 220 V source.
- A car accelerates from rest at a constant rate 'α' for some time, after which it decelerates at a constant rate 'β' and comes to rest. If the total time elapsed is 'T', the maximum velocity acquired by the car is:
- In a wave, if the energy is transferred from left to right, the particles of the medium vibrate up and down. This describes a: