Tell me what is pascal s principle?
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in one optical instrument, what is the effect of usingtwo converging lenses?
the magnifying power of a simple microscope can be increased if we use eye piece of
Why Speaker Output mentioned in WATTS
Why it is more difficult to stop a cricket ball than a tennis ball moving with same velocity ?
Similar charges repel while dissimilar ones attract each other. How does two electrons attract each other during the formation of bond or why don't the protons in the nucleus repel?
Explain the Radiation ?
Why is a jet of water curved on coming out of a horizontal nozzle ?
How can it be proved that the window glass id colored ?
Why dies blotting paper absorb ink ?
is it possible that the clock works differently in winter and in summer ?
WHAT TI THE REASON FOR THE NOISE PRODUCED IN THE TRANSFORMER?
Why is it easy to turn over a leaf with a wet finger ?