Explore topic-wise MCQs in Physics.

A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity water rises in the tube. The height of water rise in the tube can be increased by

Earlist thermometerr was developed by

What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop ?

Heat is associated with

Pick out the only vector quantity

Which of the following is a vector quantity

Two bodies A and B are of same mass and same amount of heat is given to both of them. If the temperature of A increases more than that of B because of heat addition, then

At what temperature do the Fahrenheit and celcius scales give the same reading?

The Hydraulic Break works on the principle of _____ ?

When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as

A nuclear reactor is said to have become 'critical' when

What is the minimum velocity required for a rocket to overcome earth's gravity and travel into space?

The fact that two large ships travelling on close parallel courses in the same direction tend to move towards each other can be explained by

Lightning is produced when

Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water

A boy is swinging a ball attached to a string in a horizotal circle. If the string snaps

"Light years" is the unit of _____?

What is unit of Astronomical distance ?

The velocity required to place a vehicle in orbit round the moon is _______ that required to place it in orbit round the earth

An integrated circuit is more advantages than a coventional circuit because

During thunderstorm you are travelling in a car. To protect yourself from the lightning you will have to

Radian is used to measure

Lightning heats the surrounding air to

Mirage is an example of

A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat?

A balloon filled with hydrogen will

Which of the following properties is found only in ferromagnetic materials ?

A boy is swinging a ball attached to a string in a horizontal circle.If the string snaps

1 Joule is Equal to

Compressions and Rarefactions are characteristic of

Fog is an example of a

"The Law of Kepler" is related with which among the following ?

Electrical Pressure is also called

The Capacity of a Communication Channel is Measured in

Gas law was given by

Which of following in not a property of cathode ray

Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum

An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at p

The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called

Which are the primary Colours ?

Which among the following order of decreasing wavelengths of electromagnetic waves is correct? I. Radio waves II. Infrared rays III. Visible Light IV. X-Rays

Fire in the diesel engine is produces by which of the following?.

Growth of the baby in the uterus is found using______.

Persistence of vision is the principle behind?

Which metal is commonly used for making an electromagnet?

An air bubble in water will act like a

The rate of change of linear momentum of a body falling freely under gravity is equal to it's ____ ?

In very cold countries alcohol is used as a thermometric liquid because

The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because

In a freezer ice cubes will be formed more quickly in trays made of