Explain the index of refraction of air?
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It is easier to knock a man down when he is standing on one leg than when he stands on two legs. Why ?
Why does and electric bulb make a bang or loud noise, when it is broken ?
How is the Leaning Tower of Pisa standing at its position till now ?
Can a vector have a component equal to zero and still have a nonzero magnitude?
Why is the earth not used as a return wire in a telephone system, while it is dine so in case of telegraph system.
when taken to the top of a mountain, a clock will go fast or go slow or no change or stop ?
Explain the difference between a lens and a mirror?
What are isotopes?
Write Boyle’s law ?
Examine the working of the Refrigerator?
What is the homogenous?
In the 19th century, this scottish scientist showed that all magnetic and all electric phenomena could be described by four equations that often bear his name. What ishis name?