Question

The following figure shows the shape of part of a long string in which transverse waves are produced by attaching one end of the slring to tuning fork of frequency 300 Hz. The velocity of the waves is ____________.

पर्याय

• 1.2 m s^-1

• 1.5 m s^-1

• 2.0 m s^-1

• 2.5 m s^-1

Answer 1

The following figure shows the shape of part of a long string in which transverse waves are produced by attaching one end of the slring to tuning fork of frequency 300 Hz. The velocity of the waves is 1.2 m s^-1.

Explanation:

From the figure, wavelength `lamda` = 0.4 cm.

n = 300 Hz (given)

`therefore "v" = "n" lambda = 300 xx 0.4`

` = 120  "cm s"^-1`

` = 1.2  "m s"^-1`