Physics
A drop of liquid assumes spherical shape because:

Intermolecular forces are strong in liquids
Inter molecular forces are weak in liquids
A sphere has the largest surface area for a given volume
A sphere has the least surface area for a given volume

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Physics
Which of the following events occurred first ?

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

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