What is used as a conventional regulator for controlling

If the root mean square speed of gas molecules is doubled, the absolute temperature of the gas:

Which compound reacts with sodium metal to release hydrogen gas?

Sir C.V. Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation? 

A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?

Which among the following is the fundamental quantity?

Necessary element of change in solar energy to electric energy –

Which vitamin deficiency is most directly associated with night blindness in humans?

Stereo was invented by                .

In which part of the chloroplast does the light reaction occur?

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that