Explain how do you find the refractive index of a liquid by using total internal reflection?
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Explain when is fluorescence strong?
Why us the height of mercury column unaffected by the difference in the value of gravity at the same place?
What is meant by normal modes?
a person carrying a bucket of water will leans towards his left why?
Why dies the earth move round the sun, and the moon round the earth ?
Why is it easier to swim in sea water than in the river water?
what is the safest day to have sex with a girl???
Which property of the rain coat makes it water proof?
Is there god and what is the difference between energy in space and so called goddly energy
What is Virtual image ?
Explain qualitatively the phenomenon of quantum tunneling of an electron across a potential barrier? : quantum physics
Mercury is a better barometric fluid than water because?