Physics
A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/s2)

200 J
100 J
0 J
400 J

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Physics
Which of the following events occurred first ?

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

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Physics
Superconductors are substances which

conduct electricity at high temperatures
offer no resistance to the flow of electricity
conduct electricity at low temperature
offer high resistance to the flow of current

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