45 dB
55 dB (A)
75 dB (A)
80 dB (A)
Persistance of vision is the principle behind
Persistence of vision is the Principle behind:
Persons suffering from myopia are advised to use
Photon is the fundamental unit/ quantum of
Pick out the only scalar quantity
Pick the INCORRECT statement.
Pieces of camphor placed on water move about rapidly. This is because of
Pipelines in cold countries often burst in winter, because
Power from powerhouses is often transmitted as alternating current at 33000 volts or more. Why is power transmitted as such high voltage ?
Pressure Cooker cooks faster because
