Length of a string tied to two rigid supports is $40 cm$. Maximum length (wavelength in $cm$) of a stationary wave produced on it is ... $cm$

A tuning fork of frequency $480 Hz$ produces $10$ beats per second when sounded with a vibrating sonometer string. What must have been the frequency of the string if a slight increase in tension produces lesser beats per second than before ..... $Hz$

A stretched string of length $l,$ fixed at both ends can sustain stationary waves of wavelength $\lambda ,$ given by

A second harmonic has to be generated in a string of length $l$ stretched between two rigid supports. The point where the string has to be plucked and touched are

A string wave equation is given $y=0.002 \sin (300 t-15 x)$ and mass density is $\mu=\frac{0.1\, kg }{m}$. Then find the tension in the string, (in $N$)

Stationary waves are produced in $10\,m$  long stretched string. If the string Vibrates in $5$ segments and wave velocity  $20\,m/s$ the frequency is ..... $Hz$