Define ‘electrostatic potential energy’.

What are Non-polar molecules? State examples.

What is meant by dielectric breakdown?

What is the electric flux through a cube of side 1 cm which encloses on electric dipole?

A particle of mass m and charge (-q) enters the region between the two charged plates initrally moving along X-axis with speed Vx as shown in figure. The length of plate is L and an uniform electric field E is maintained between the plates. S.T. vertical deflection of the particle at the far edge of the plate is \(\frac { q{ EL }^{ 2 } }{ 2m{ V }_{ x }^{ 2 } } \).

Why current is a scalar?

What is electric power and electric energy?

What do you mean by end resistance? How can it be rectified?

Why are resistors connected in series and in parallel
(i) To increase the resistor of the circuit
(ii) The resistors are connected in series.

Define magnetic dipole moment.

What is meant by
(i) Geographic axis
(ii) Geographic meridian &
(iii) Geographic equator?

State Right hand thumb rule.

State Maxwell's right hand cork screw rule?

Write the Limitations of cyclotron?

Explain the concept of velocity selector.

How is a galvanometer converted into (i) an ammeter and (ii) a voltmeter?

State Lenz’s law.

How is Eddy current produced? How do they flow in a conductor?

Define electric resonance.

How will you define Q-factor?

What is meant by Sinusoidal alternating voltage and current? Give its expression.

When does the phenomenon of resonance is possibble in the circuit?

What is waltless current?

What are electromagnetic waves?

Write down the integral form of modified Ampere’s circuital law.

What is angle of deviation due to refraction?

What is relative refractive index?

Write a note on optical fibre.

What are primary focus and secondary focus of a lens?

What is meant by focal plane?

What is total internal reflection?

A ray of light incident on a concave lens becomes parallel to the principal axis after refraction. Show this situation with the help of a ray diagram.

What is a photo cell? Mention the different types of photocells.

Name an experiment that shows the wave nature of the electron. Which phenomenon was observed in this experiment using an electron beam?

A proton and a deuteron have the same velocity, what is the ratio of their de Broglie wavelengths?

What is meant by excitation energy?

What is distance of closest approach?

Write a general notation of nucleus of element X. What does each term denote?

Classify the neutrons according to their kinetic energy.

Distinguish between Nanoscience and Nanotechnology.

What kind of blueprint does the natural structure provide?

What is the significance of electromagnetic wave theory of light?

State Huygens’ principle.

Discuss the special cases on first minimum in Fraunhofer diffraction.

What is call 'grating element'?

What are plane polarised, unpolarized and partially polarised light?

Which of the following waves can be polarized
(i) Heat waves
(ii) Sound waves? Give reason to support your answer.

What is barrier potential?

Explain the working principle of a solar cell. Mention its applications.

What is modulated wave?