The inside of a vacuum flask is usually coated with silve...
The inside of a vacuum flask is usually coated with silver to reduce heat lost by
convection
conduction
radiation
absorption
evaporation
Correct answer is C
No explanation has been provided for this answer.
X rays can be used in the study of crystal structure because they...
A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the ga...
Which of the following statements best describes a rigid body? A body which ...
Nuclear sizes are expressed in a unit named ...
Which of the following is/are longitudinal wave(s)? I. Light waves from the sun II. Sound waves...