Physics
Who is known as the 'father of quantum theory'?

Ernest Rutherford
Werner Heisenberg
Max Planck
Albert Einstein

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Physics
What is the direction of torque?

Parallel to the radius
Perpendicular to the direction of applied force
Same as the direction of applied force
Opposite to the direction of applied force

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Physics
Stationary wave is formed by

Two waves of the same speed superposing
A transverse wave superposing a longitudinal wave
Two waves of same frequency travelling in the opposite direction
Two waves of same frequency travelling in the same direction

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