Physics
Which of the following events occurred first ?

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

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Physics
It is dangerous to observe Solar eclipse with naked eyes because

Cosmic rays reach eyes more during the eclipse
Infrared radiations from sun burn our retina
Ultraviolet radiations from Sun burn our retina
All radiations from sun initiate chemical reactions in eyes

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