List of top Physics Questions

Define self-inductance and mutual inductance. Find an expression for mutual inductance of two coaxial solenoids.
What is photoelectric effect? What are the laws of photoelectric effect? Explain this law given by Einstein.
Define wavefront and secondary wavelets. Verify the law of reflection on the basis of Huygens’ wave theory.
Define volume density of charge. Write its SI unit.
State Kirchhoff's laws and use them to obtain the condition for balance of a Wheatstone bridge.
Mention two different modes of propagation used in communication system.
Write two properties of beta rays.
State and prove Gauss's theorem in electrostatics. Calculate the electric field intensity at a point outside a hollow uniformly charged sphere.
Explain magnetic moment. Write its SI unit.
Explain Bohr's stable orbit.
A proton and an electron have the same kinetic energy. Which one has greater de Broglie wavelength and why?
Write Fleming's left hand rule.
Write down the difference between nuclear fission and nuclear fusion.
Write down two basic differences between interference and diffraction.
Write two properties of paramagnetic substances.
Convert decimal numbers 21 and 43 into their equivalent binary numbers.
Mention the two characteristic properties of the material suitable for making the core of a transformer.
Compare the magnetic properties of steel and soft iron.
Write the necessary conditions for total internal reflection of light.
Explain electrical resonance.
Which of the following devices is based on the principle of electromagnetic induction?
What do you mean by power of accommodation of eye?
The applied voltage in an alternating circuit is 220 V. If \( R = 8 \, \Omega \) and \( X_L = X_C = 6 \, \Omega \), then find the root mean square value of voltage and impedance of the circuit.
The self-inductance of a solenoid depends on
How does refractive index of any medium depend upon the wavelength of light?