What do you mean by photo electric effect? Calculate the energy of one mole of photons of radiations having wave length 200 nm.

What do you mean by wave energy?

What do you mean by wave length?

What do you mean by green houses effect?

Calculate the energy of one mole of photons of radiations having wavelength 300 nm. (c=3xx10^(8) mS^(-1) , h= 6.626xx10^(-34)JS) .

What do you mean by transformation of energy?

What do you mean by coherent and Incoherent waves?

What do you mean by conventional sources of energy?

What do you mean by non- conventional / alternative sources of energy ?

What do you mean by mass-energy equivalence? Give example