Physics Questions

The ____ of a substance is defined as the mass per unit volume.

The diameter of the reflecting surface of a spherical mirror is called a/an

Consider a planet whose mass and radius are both twice the mass and radius of Earth. The acceleration due to gravity on the surface of the planet is 'n' times that on Earth. The value of n is:

A conductor having some appreciable resistance is called a

1 pascal equals 1 ________________.

The pressure inside the cabin of the aircraft flying at an altitude is

Mechanical energy is the sum of

A source maintains a current I in a resistor of resistor of resistance R. If V is the potential difference across the resistor. The electrical energy dissipated in the resistor in time is given _____