Physics
While ascending a hill, the driver of the vehicle keeps the gear ratio

Equal to 1
Either equal to or greater than 1
Greater than 1
Less than 1

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Physics
Pressure Cooker cooks faster because

Higher temperature is attained for cooking
The material of the cooker is a good conductor
It cooks the food at low pressure
Boiling point decreases with rise of pressure

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Physics
Why are we able to hear short wave broadcasts better than long wave broadcasts ?

By convention, short waves are meant for long distances, whereas long waves are reserved for short distances.
Short wave broadcasts are made by nearby radio stations.
Short waves are unaffected by atmospheric disturbances.
Short waves are more energetic than long waves.

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Physics
Which of the following occurred first ?

Albert Einstein propounded the General Theory of Relativity
Max Planck unveiled the Quantum Theory
Guglielmo Marconi sent out the first wireless signals
Wright Brothers successfully flew an aircraft

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