Explanation

Explanation

In reverse bias, the depletion region widens, raising the potential barrier.

This prevents current flow through the diode under normal conditions.

Explanation

Monochromatic light bends (deviates) when passing through a prism due to refraction.

Since it has a single wavelength, it is not dispersed into colors.

Explanation

Laser emits light that is coherent, intense, and monochromatic.

Its beam is highly focused and maintains its properties over long distances.

Explanation

A positron has the same mass as an electron but carries a positive charge.

It is the antiparticle counterpart of the electron.

Explanation

A sensor detects a physical quantity (like temperature, pressure, or light).

It converts this physical signal into a corresponding electrical voltage.

Explanation

It is the ratio of stress to strain in the elastic region of a material.

Measures the stiffness of a material under tensile or compressive force.

Explanation

A capacitor blocks direct current (DC) but allows alternating current (AC) to pass.

This happens because AC causes continuous charging and discharging of the capacitor.

Explanation

Explanation

A high resistance in series limits current through the galvanometer.

This allows it to measure potential difference without damaging the coil.