Physics
It is easy to burst a gas-filled balloon with a needle than with a nail. It is because

Needle exerts more pressure than nail on the balloon.
Nail exerts more pressure than needle on the balloon.
Gas is reactive with the needle.
Nail is more longer than needle.

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Physics
Which of the following events occurred first ?

Marconi first tranmitted a wireless signal
Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory
Madame Marie Curie became the first woman Nobel Prize winner

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