Science Physics MCQ-159

General Science-Physics Practice Test for CDS, NDA, CivilsPrelims, RBI, UPPSC, JPSC, SSC, UPSC Exams



The force that prevents the relative motion between the layers of a liquid is called

 
 
 
 

The forces of 4 dyne and 3 dyne act upon a body. The resultant force on the body can only be

 
 
 
 

The freezer in a refrigerator is fitted near the top

 
 
 
 

The frequency of vibration of a stretched string is…its length.

 
 
 
 

The function of fuse in an electrical circuit is

 
 
 
 

The function of the choke is to

 
 
 
 

The fundamental characteristic of all waves are

 
 
 
 

The fusion reaction between two light nuclei takes place at

 
 
 
 

The half-life of a radioactive substance depends on

 
 
 
 

The half-life of a radioactive substance is 10 days. This means that

 
 
 
 

The half-life of a radioactive element is 5 years. The fraction of the radioactive substance that remains after 20 years is

 
 
 
 

The heat released by the condensation of x j grams of steam at 1000C into water at 1000C | converts y gram of ice at 00C into water at j 1000C. The ratio y/x is nearly equal to !

 
 
 
 

The height of a geostationary satellite above the surface of the earth is approximately

 
 
 
 

The horse pulls the cart because of

 
 
 
 

The hygrometer is a device for measuring

 
 
 
 

The ink of a pen leaks out in an airplane because

 
 
 
 

The inside of an aeroplane flying at a high altitude

 
 
 
 

The insulating properties of substances like mineral wool, woollen blankets, U-foam, etc., are because

 
 
 
 

The intensity of sound at a point is … its distance from the source.

 
 
 
 

The kind of fuse wire to be used depends on

 
 
 
 

The law of universal gravitation was propounded by

 
 
 
 

The laws concerning the motion of planets were suggested by

 
 
 
 

The layer of the atmosphere which reflects the radio waves back to the earth is called

 
 
 
 

The leaning tower of Pisa does not fall because

 
 
 
 

The linear momentum of a particle increases . by 50%. The increase in kinetic energy should be