Write the value of the speed of light.

Calculate the de Broglie wavelength of an electron moving with a speed that is 1% of the speed of light.

Explain how Newton's corpuscular theory predicts the speed of light in a medium say water to be greater than the speed of light in vacuum. Is the prediction confirmed by experimental determination of the speed of light in water? If not which alternative picture of light is consistent with experiment ?

In which of the following phenomena, the heat waves travel along straight lines with the speed of light?

Write the value of molecular weight of oxygen.

An observer is moving with half the speed of light towards a stationary microwave source emitting waves at frequency 10 GHz. What is the frequency of the microwave measured by the observer? (speed of light = 3xx 10^(8) m cdot s^(-1) )

A ray of light passing from air through an equilateral glass prism undergoes minimum deviation when the angle of incidence (3)/(4) of the angle of prism .Calculate the speed of light in the prism.

Write the value of specific gas constant for hydrogen gas.