In a circuit containing internal resistance r. Find the power delivered.

State the rule which is used to find the direction of field acting at a point near a current carrying street conductors?

Give and explain the mechanical analogy of LC oscillations by qualitative treatment.

Identify the Electromagnetic waves whose wavelength vary as
(a) 10^-12 m to 10^-8 m
(b) 10^-4 m and write their uses.

What is principal axis of the mirror?

The frequency V of incident radiation is greater than threshold frequency (v_o) in a photocell. How will the stopping potential vary if frequency (v) is increased, keeping other factors constant?

What is the diameter of H₂ atom?

Write the two ways of preparing the nano materials.

Discuss diffraction at single slit and obtain the condition for n^th maximum.

Write the applications of internet.