Which one among the following is not an electro magnetic wave?

• X-Ray

• R-Ray

• Cathode Ray

• Cathode Ray

Atomic number of an atom gives the number of which of the following?

• Electrons

• Protons

• Neutrons

• Neutrons

Which one among the following components can not be developed with an 'integrated circuit'?

• Diode

• Triode

• Transformer

• Transistor

Intensity of any wave is proportional to which of the following?

• Amplitude

• Square of amplitude

• Square root of amplitude

• Square root of amplitude

The large collection of stars, dust and gas held together by gravitational attraction between components is known as

• Cluster

• Atmosphere

• Galaxy

• Galaxy

An anemometer measures which of the following?

• Speed of light

• Speed of wind

• Speed of water current

• Speed of water current

Why is weightlessness experienced while orbiting the earth in space ships?

• Inertia

• Acceleration

• Zero gravity

• Zero gravity

Which of the following is indicated by the colour of a star?

• Weight

• Distance

• Temperature

• Temperature

The force which makes a vehicle to stop when break is applied is called

• Gravitational force

• Vander-walls force

• Frictional force

• Frictional force

For Which one of the following, 'Diodes' are generally used for?

• Rectification

• Amplification

• Modulation

• Modulation