Shock absorbers in automobiles are one practical application of:

High pitch means:

Snell’s law is stated as:

The ray of the light after reflection from concave mirror passes through:

At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:

The critical angle for a beam of light passing from water into air is 48.8 degrees. This mean that all light rays with an angle of incidence greater than this angle will be:

What happens to the intensity of the brightness of the lamps connected in series as more and more lamps are added?

The line which passes through pole of the mirror and center of curvature is called principal:

A positive electric charge:

Give the number of factors which affect the ability of a capacitor to store charge.

The phenomena used in capacitor is:

Release of the energy by the sun is due to: