The S.I unit for sound energy is
The S.I unit for sound energy is
Hz
cd
dB
J
Correct answer is D
Every form of energy is measured in joules (J).
Water waves have a wavelength of 3.6cm and speed of 18cms\(^{-1 }\) in deep water. If the wave...
A satellite is in a parking orbit if its period is ...
Lines of force I. Begin and end on equal and opposite electric charges. II. are in state of ten...
The silvered surface in a vacuum flask reduces heat loos due to ...