Units and Measurement
by
Manoj Jaiswar ( PMJ Sir )
August 21, 2022
The masses of two bodies are measured to be 15.7 ± 0.2 kg and 27.3 ± 0.3 kg. What is the total mass of the two and the error in it?
Posted by Manoj Jaiswar ( PMJ Sir )
A tuning fork of frequency 170 Hz produces sound waves of wavelength 2 m. Calculate speed of sound.
As per the question the given data is, frequency n = 170Hz wavelength λ =…
An echo-sounder in a fishing boat receives an echo from a shoal of fish 0.45 s after it was sent. If the speed of sound in water is 1500 m/s, how deep is the shoal?
The data that can be listed from the sum given are, speed v= 1500 m/s time…
What is reverberation
S ound produced in auditorium or any big hall persists for sometime due t…