Physics Quiz 3

A person can jump higher on the Moon’s surface than on the Earth because

The purpose of choke in a fluorescent lamp is

The apparent weight of a man in a lift is less than the real weight when

Rainbows are produced when sunlight

The velocity of sound in moist air is more than in dry air because the moist air has

The least penetrating power ray is

X-rays can be used

Ice is packed in saw dust because

It is easy to burst a gas-filled balloon with a needle than with a nail. It is because

Electric current is measured using which of the following instrument?

The dynamo converts

A fuse wire is characterized by

For a missile launched with a velocity, less than the Earth’s escape velocity, the total energy is

Cyanide poisoning causes death in seconds because

When one gene pair hides the effect of the other unit. The phenomenon is referred to as

To an astronaut in space the sky will appear to be

On a rainy day, small oily films on water show brilliant colours. This is due to

Rainbow formation is due to

The total energy of an electron inside an atom is

The velocity of light is

A seconds pendulum is a pendulum whose time period is

A jug is filled to the brim with water at 0°C. A piece of ice floats in it. The moment the ice melts:

Herman Hollerith had perfected his tabulating system and developed a machine called

Absorption of water from cut ends of stems disproves the

The loss of water in the form of water droplets is called

The metal used for making aircrafts and rickets is

The colours of stars depend on their

Radar is used to

Optical fibre works on the principle of

Radio Carbon Dating is used to estimate the age of

A satellite in vacuum

Communication satellites are used to

‘Farad’ is the unit of

Steel is more elastic than rubber because it

On the Moon, an astronaut cannot drink lemonade with the help of straw because

A particle moving with uniform speed

Device which uses sound waves for detection and ranging is called

Earth is a very big magnet. In which direction does its magnetic field extend?

Which colour/colour of light has the highest velocity through vacuum?

What type of minor is used in a view finding mirror of a vehicle?

We receive sunlight on earth surface. What type of light beams are these?

‘Shock-absorbers’ are usually made of steel as it

The time period of a pendulum when taken to the Moon would

The atmospheric air is held to the Earth by

The function of ball bearings in a wheel is

Lambert’s law is related to

A geostationary satellite revolves around the Earth from

Among the following materials sound travels fastest in

Which phenomenon do bats or dolphins use to find prey, predators or obstacles?

What did the first electronic digital computer contain?