The angle of incident for which the refracted ray emerges tangent to the surface is called

Fathom is the unit of

The scientific principle behind the working of a transformer is

The system of unit which are in use are ......................

Which of the following is not a fundamental unit?

Physical quantities which depend on one or more fundamental quantities for their measurements are called

Which of the following is not a fundamental quantity?

The fundamental unit which is common in F.P.S and M.K.S systems is

Particle which is known as 'God particle'

The energy carriers in the matter are known as

Which atmospheric layer contains ions and helps in wireless communication?

Study of moon

Farad is the unit of:

Which of the following is the unit of Radioactivity?

Which of the following has same units ?

The unit of approximate distance from the sun to the earth is:

Which of the following is a vector quantity?

Unit of Power is known as

Weber is the unit of -------------

What is the unit of Astronomical distance ?

What is the SI unit of Luminous Intensity?

How many base units in SI system?

Ohm is a unit of measuring _________

Pascal is the unit for

Lux is the SI unit of

What is the S.I. unit of temperature?

Richter scale is used for measuring

Name the instrument used to measure relative humidity

The unit of current is

A chronometer measures

Fathom is the unit of

Electric current is measure by

Very small time intervals are accurately measured by

Joule is the unit of

Nautical mile is a unit of distance used in

'Bar' is the unit of

One nanometer is equal to

What is the unit for measuring the amplitude of sound?

Light year is a unit of

A machine do a work of 100 joule in 20 second. What is its power?

1 Horse Power (HP) = _________ Watt.

Potential energy = mass × ________ × height

The rate of change of work is _______ .

What happens to its potential energy when an object is taken to high altitude?

1 joule = ________ erg.

On an object the work done does not depend upon:

What is the smallest unit of power?

In 1 minute how much energy does a 100 W electric bulb transfers?

When an object falls freely towards the ground, then its total energy:

The commercial unit of Energy is: