Physics mcq questions and answers for competitive exams

If velocity of all fluid particles is same all the time then it is called

It is more difficult to walk on a sandy road than on a concrete road because

Suitable impurities are added to a semiconductor depending on its use. This is done in order to

The Period of revolution round the sun is maximum by which among the following planets?

Nichrome wire is used in an electric heater because

Mercury is commonly used as a thermometric fluid rather than water because

If a red-green flag is seen in green light it appears to be of which of the following colour?

Optical fibre works on the

It takes much longer to cook food in the hills than in the plains, because

Which law states, ' the effect produced by a moving source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching and an apparent downward

Which law is also called law of inertia?

The weight of a body is

Ampere-hour is the unit of which among the following?

Blisters are formed more rapidly by the steam of boiling water in comparision to boiling water itself because

Railway tracks are banked on curves