Physics 2nd Paper CQ-Barishal Board-2022

Define the interference of wave.

The light year is not really time-Explain.

Determine the cnergy of a photon for the violet light.

Justify the speech of Riya with calculation.

What is nuclear fission?

Alpha rays are deflected by electric field but the gumma rays are not-Explain it.

Calculate the mass defect of uranium.

Out of two elements mentioned in the stem, from which one a nucleon can be removed more easily? Show by mathematical analysis.

State Kirchhoff's first law.

How does a Shunt protect a galvanometer? Explain.

Determine the main current of the given circuit.

If current flows through the circuit for 1 minute then which resistor will generate more heat? Verify mathematically.

Definc capacitance of a capacitor.

State the similarities and differences between Coulomb's law of slatic electricity and Newton's law of gravitation.

Calculate the Electric potential at a point of $0.8 \mathrm{~m}$ from the centre of the sphere.

If the spherical conductor is divided into five identical spheres where charges distributed uniformly then verify mathematically whether the electric potential on the surface for each new sphere will be the $\frac{1}{5}$ th of that on the surface of the sphere given in the stem.

Define one electron volt.

Is it possible or not, there are charges of $1.6 \times 10^{-18} \mathrm{C}$ on a body? Explain.

Calculate Equivalent Capacitance from fig: 1 .

Out of the two circuits shown in the above stem, which one stores more energy? Analyze mathematically.