The mode of heat transfer which does not require a materi...
The mode of heat transfer which does not require a material medium is
conduction
radiation
convection
propagation
Correct answer is B
No explanation has been provided for this answer.
In the above, a voltage V is applied across the terminals P and Q. The voltage across the 1 ohm resi...
Which of the following media allow the transmission of sound waves through them? I. air II. liquid...
In the AC circuit diagram above, the resonance frequency is ...
A negatively charged rod is brought near the cap of a gold-leaf electroscope. The cap is earthed mom...
Which of these is observed when air is pumped out of a discharge tube without lowering its pressure ...
A device used to prevent wearing away of the make and-brake contacts of an induction coil is called ...
A machine of efficiency 8% is used to raise a body of mass 75kg through a vertical height of 3m in 3...
The force between molecules of the same substance is termed ...
A projectile is fired from the ground level with a velocity of 300ms-1 at an angle of a 30o to the h...
Which of the following liquids has the highest surface tension? ...
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