Test Preparation on Wave and Sound-III-Physics Test Series For NEET 2020

Standing waves are produced in a 10 m long stretched
string. If the string vibrates in 5 segments and the wave
velocity is 20 m/s, the frequency is-

The tension in a piano wire is 10N. What should be the
tension in the wire to produce a note of double the
frequency-

A string of 7 m length has a mass of 0.035 kg. If tension in
the string is 60.5 N, then speed of a wave on the string is-