Advertisements
Advertisements
प्रश्न
(a) Which one of the following graphs A or B shows free vibrations in a vacuum and which one shows free vibrations in a medium?
(b) How did you come to this conclusion.
Advertisements
उत्तर
- Graph A represents free vibration in a vacuum and Graph B represents free vibration in the medium.
- For free vibrations in a vacuum, there is no resisting force, thus the amplitude will remain the same with time. Whereas for free vibrations in a medium there is always a resistive force, thus the amplitude reduces with time due to this resistive force.
APPEARS IN
संबंधित प्रश्न
State the ways by which the frequency of transverse vibrations of a stretch string can be increased
Why are the Ultrasonic waves are not audible to us?
What do you understand by free vibrations of a body?
State one way of increasing the frequency of a note produced by an air column.
A wire stretched between two fixed supports, is plucked exactly in the middle and then released. It executes (neglect the resistance of the medium) ______.
Define the term Amplitude.
Two astronauts cannot hear each other on the moon. Why?
Explain why does a wine glass starts rattling, when a note of some particular frequency is struck by a piano?
