Physics
When the stem of vibrating tuning fork is pressed on a table, the tabletop starts vibrating. These vibrations are definitely an example of:
- resonance
- natural vibrations
- forced vibrations
- damped vibrations
Sound
1 Like
Answer
forced vibrations
Reason — When the stem of a vibrating tuning fork is pressed against the top of a table, the tuning fork produces forced vibrations in the table top as the table top has a much larger vibrating area than the tuning fork, so the forced vibrations of the table top send forth a greater energy and produces a louder (or more intense) sound than that produced by the tuning fork.
Answered By
2 Likes
Related Questions
A radioactive nucleus containing 128 nucleons emits a β – particle. After β – emission the number of nucleons present in the nucleus will be :
- 128
- 129
- 124
- 127
Assertion (A) : Ultraviolet radiations are scattered more as compared to the microwave radiations.
Reason (R) : Wavelength of ultraviolet radiation is more than the wavelength of microwave radiation.
- Both A and R are true.
- A is true but R is false.
- A is false but R is true.
- Both A and R are false.
Which of the following is a class III lever?
- Pair of scissors
- Wheelbarrow
- Crowbar
- Human forearm
The specific resistance of a conductor depends on its:
- length
- material
- area of cross section
- radius