RRB GROUP D Physics Quiz - 11

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Question 1:

What should be the escape velocity for a object on earth ?

Question 2:

Pierre Gassendi, a French philosopher-scientist, observed gunfire from a distance in order to measure which natural phenomenon?

Question 3:

It is difficult to walk on an oily floor because

Question 4:

Radioactivity is measured in -

Question 5:

A Refrigerator works on which of the following principles?

Question 6:

Which one of the following is used to measure pressure inside eyes ?

Question 7:

What will be the effect on the density of milk if its cream is removed. its density-

Question 8:

An egg when placed in ordinary water, it sinks but floats when placed in brine. This is because- ?

Question 9:

The work done on an object does not depend upon the:

Question 10:

Sound is a mechanical wave that needs a medium to travel, Speed of sound is maximum in which medium?