Physics
The frequency f of the note produced by a string can be increased by :
- decreasing the length l of the string
- decreasing the radius r of the string
- increasing the tension T of the string
- All of these
Related Questions
In an organ pipe with one closed end, the frequencies of different modes are in the ratio :
- 1 : 2 : 3 …
- 1 : 3 : 5 …
- 1 : 2 : 4 …
- 2 : 4 : 6 …
The frequency f of a vibration in a stretched string depends on :
- length l
- radius r
- tension T
- all of these
If l is the length of the string stretched between its ends, the wavelength of different modes in Figure (1), (2) and (3) will be :
- 2l/2, 2l, 2l/3
- 2l/3, 2l/2, 2l
- 2l, 2l/2, 2l/3
- 2l, 21/3, 2l/2
When a body vibrates under a periodic force, the vibrations of a body are:
- natural vibrations
- damped vibrations
- forced vibration
- resonant vibrations.