State the importance of Davisson and germer experiment.

Draw a neat labelled diagram of Davisson and Germer experiment for diffraction of electron wave.

Answer the following questions : State the importance of rate in a chemical reaction.

What is the importance of ozone layer ?

State the economic importance of Mosses.

What is the importance of Osmosis?

If the accelerating potential in Davisson and Germer’s Experiment is 54 volt, the de Broglie wavelength of the electron is

State the economic importance of angiosperms.

Explain the importance of vaccination ?

What is the importance of root pressure?

What is the importance of haploid cells?