The pressure of one mole of an ideal gas of volume 10-2 m3 at a temperature of 27°c is [molar gas constant = 8.3 J mol-1 k-1]
Which of the following has no effect on radiation?
The wavelength of a wave traveling with a velocity of 420 ms-1 is 42 m. what is its period?
The sound of an electricity bell dies down slowly when air is slowly pumped out from a bottle because
During a thunderstorm, the sound is heard over a long time. this phenomenon is referred to as?
