List of top Physics Questions

Mention the two characteristic properties of the material suitable for making the core of a transformer.
Write down the difference between nuclear fission and nuclear fusion.
Compare the magnetic properties of steel and soft iron.
Write the necessary conditions for total internal reflection of light.
Write Fleming's left hand rule.
Convert decimal numbers 21 and 43 into their equivalent binary numbers.
Write two properties of paramagnetic substances.
Which of the following devices is based on the principle of electromagnetic induction?
What is Curie temperature?
How does refractive index of any medium depend upon the wavelength of light?
What do you mean by power of accommodation of eye?
The self-inductance of a solenoid depends on
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.
Explain electrical resonance.
The direction of magnetic field inside a current carrying solenoid is
The relative permeability (\( \mu_r \)) of ferromagnetic substance is
The unit of current density is
Which of the following represents resistance, R?
\( \rho = \text{resistivity}, l = \text{length of material}, A = \text{cross-sectional area} \)
If the length of a conductor is doubled while keeping the potential difference across it constant, then the drift velocity of electron will
In series circuit with resistors \( R_1, R_2, R_3 \), the current flowing through each resistor is
The graph between voltage \( V \) of a conductor and current \( I \) is a straight line, which makes an angle \( \theta \) with the y-axis (which represents \( I \)). The resistance of the conductor will be
Equivalent energy of 1 amu is
A capacitor of 100 \(\mu F\) is charged to 100 volt. The energy stored in it will be
Power of electric circuit is
Which of the following has unit volt-metre\(^{-1}\)?