Science Physics MCQ-166

General Science-Physics Practice Questions for NDA, CDS, DelhiPolice, UPSC, CivilsPrelims, UPPSC, SSC, RBI Exams



The element used in an electric filament is

 
 
 
 

The molecular weight of a subtance can be calculated by measuring

 
 
 
 

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

 
 
 
 

When a stone is dropped in a well, the splash is heard after 5 seconds after the stone hits the water surface. If the velocity of sound is 327 m/ s, the depth of the well is

 
 
 
 

A magnetic field does not interact with

 
 
 
 

The critical angle of a glass slab increases with

 
 
 
 

Cosmic rays

 
 
 
 

Rectifiers are used to convert

 
 
 
 

The terminal colours of the rainbow are

 
 
 
 

Rate of evaporation does not depend upon

 
 
 
 

The best conductor of electricity is

 
 
 
 

The normal boiling point of a liquid is the temperature at which

 
 
 
 

The shining particles seen in the path of beam from a projector in cinema hall is due to

 
 
 
 

What happens to the equivalent conductance of an electrolyte on dilution?

 
 
 
 

Choke is used to

 
 
 
 

Piezo-electric effect is exhibited by

 
 
 
 

The substance used in the manufacture of high voltage insulators is

 
 
 
 

”Decibel” is a unit of

 
 
 
 

Ball-point pen works on the principle of

 
 
 
 

At what temperature a body will not radiate any heat energy?

 
 
 
 

The power of a convex lens having a focal length 25 cm will be

 
 
 
 

A telescope and a microscope differ in that

 
 
 
 

The centre of the Newton’s rings pattern is dark, since

 
 
 
 

Galvanometer can be converted into a Voltmeter by using

 
 
 
 

The apparatus used in submarines to give a clear view of the objects on the surface of the ocean or ground is known as