Physics भौतिक विज्ञान Quiz #9
An oil drop spreads over water because
The device which convert AC to DC is :
Knot is a measure of
When the main switch of the house is put off it disconnects the
Heat from the sun reaches earth by the process of
Which of the following produces more severe bums ?
The sudden fall of atmospheric pressure indicates
Magnetism in materials is due to
Short sight in human eye can be corrected by using proper
What is the reason for twinkling of stars ?