Define atomic mass unit.

Calculate the equivalent energy in MeV of a unified atomic mass unit.

Define the atomic mass unit.

Express unified atomic mass unit in kg.

Express unified atomic mass unit in kg.

The energy equivalent of one atomic mass unit is

One unified atomic mass unit represents a mass of magnitude

The disappearance of one atomic mass unit (am u) releases ………………………. MeV energy.

If the binding energy per nucleon of deuterium is 1.115 MeV, its mass defect in atomic mass unit is

On an energy level diagram of hydrogen, show by a downward or an upward arrow, a transition which results in : (i) emission line of Balmer series. (ii) emission line of Lyman series. (iii) absorption line of Lyman series. (b) (i) Define unified atomic mass unit . (ii) Write the expression for speed of electromagnetic waves in a medium of electrical permittivity epsilon and magnetic permeability mu .

if the binding energy per nucleon of deuteron is 1.115 Me V , find its masss defect in atomic mass unit .