Which of the following substances lowers the surface tens...
Which of the following substances lowers the surface tension of water?
metal
sand
detergent
paper
Correct answer is C
No explanation has been provided for this answer.
Which of the following is/are TRUE of nuclear fission? I. A heavy nucleus is split into two nucl...
The quality of a note produced by a vibrating string is determined by the ...
The inverse of the time required for a wave to complete one full cycle is called ...
Which of the following are the correct SI units of the quantities indicated? i.N(Force) ii. N/m&...
The main reason for making the cover of a vacuum flask airtight is to prevent heat loss by ...
A ray of light traveling from glass into ethyl alcohol is incident at the boundary at an angle ...