In which of the following devices is the principle of pho...
In which of the following devices is the principle of photoelectric effect not applicable?
close-circuit television camera
burglar alarm
solar cells
periscope
Correct answer is D
No explanation has been provided for this answer.
For which of the underlisted quantities is the derived unit ML2T2 correct? i. momentum of a force...
The amount of heat needed to raise the temperature of 10kg of copper by 1k is its ...
A plane is inclined at an angle \(\theta\) to the horizontal. Its velocity ratio is...
Which of the following properties makes metals ideal for cooking utensils? ...