A piece of cloth appears green in sunlight. When held in ...
A piece of cloth appears green in sunlight. When held in red light, it will appear
green
blue
red
black
Correct answer is D
No explanation has been provided for this answer.
An atom in an excited state is one whose ...
An a.c. generator can be converted to a d.c. electric motor by replacing the ...
A parallel plate capacitor of area 10cm2 in vacuum has a capacitance of 10-2μF. What is the di...
The sensitivity of a thermometer is ...