Explain - Cs metal is used in photo electric cell.

Explain Einstein's photo electric equation.

Give the experimental study of photo electric effect. Draw the variation curve photo electric current with intensity of light.

Name the metal used for making electric cables.

Explain Na metal is always kept in Kerosene oil.

Write a short note on Hertz's observation photo electric effect.

Explain the principle on which the metal detector is used in airport for security reason works.

Explain the main function of electric and magnetic fields in a cyclotron.

What is salt bridge? Why is it used in electrochemical cell?