JEE Main 20199 Apr, Morning shiftPhysicsMediumOscillations and Waves185× since 2002
The pressure wave, P = 0.01 sin [1000t – 3x] Nm^–2,
corresponds to the sound produced by a vibrating blade
on a day when atmospheric temperature is 0°C. On
some other day, when temperature is T, the speed of
sound produced by the same blade and at the same
frequency is found to be 336 ms^–1 . Approximate value
of T is