We wish to observe an object which is `2.5 Å` in size. The minimum energy photon that can be used is

The photo electric threshold wavelength for a metal is 2750A^(0) . The minimum energy of a photon that can produce photoelectric effect in the metal is - - - - ev ?

The photo electric threshold wavelength for a metal is 2750A^(@) , The minimum energy of a photon that can produce photoelectric effect in the metal is

The photo electric threshold wavelength for a metal is 2750A^(@) , The minimum energy of a photon that can produce photoelectric effect in the metal is

The photo electric threshold wavelength for a metal is 2750A^(@) .The minimum energy of a photon that can produce photoelectric effect in the metal is ?

Photon of which light has minimum energy

We wish to see inside an atom. Assuming the atom to have a diameter of 100 pm, this means that one must be able to resolve a width of say 10 pm. If an electron microscope is used, the minimum electron energy required is about

We wish to see inside an atom. Assuming the atom to have a diameter of 100 pm , this means that one must be able to resolve a width of say 10 pm . If an electron microscope is used, the minimum electron energy required is about

We wish to see inside an atom. Assuming the atom to have a diameter of 100 pm, this means that one must be able to resolve a width of say 10 pm. If an electron microscope is used, the minimum electron energy required is about

The value of numerical aperature of the objective lens of a microscope is 1.25 if light of wavelength 5000 Å is used the minimum separation between two points to be seen as distinct, will be

A telescope has an objective lens of diameter 5 inch, determine the minimum angular separation between two distant objects for light of wavelength 6,000 Å