Short Answer TypeAnalogue circuit: It the current and voltage in an electronic circuit vary continuously with time then that circuit is called analogue circuit.
For example, sin wave is an analogue signal.
Digital circuit : If the current and voltage in an electronic circuit have only two levels either on or off, then the circuit is called digital circuit.
Symbol of XOR gate is given by, 
Long Answer TypeFor Bohr’s model of the hydrogen atom, the energy of electron in its ground state is found to be-13.6 eV.
(i) Draw an energy level diagram for the hydrogen atom and mark the values of energy (in eV) at n = 2 and n = ∝.
(ii) Obtain the maximum energy of a photon emitted by the hydrogen atom in eV.
(i) On what does the minimum wavelength of the continuous x-ray spectrum depend
(ii) When the filament current is increased, the intensity of the x-ray produced increases. Why?
(iii) Why is the structure of crystals studied by x-rays ?
Switch
