Physics
A storm is predicted if atmospheric pressure

Rises gradually
Falls gradually
Rises suddenly
Falls suddenly

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Physics
Railway tracks are banked on curves so that

Necessary centripetal force may be obtained from the horizontal component of the weight of the train
No frictional force may be produced between the tracks and the wheels of the train
Necessary centrifugal force may be obtained from the horizontal component of the weight of the train
The train may not fall down inwards

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Physics
Ice is packed in saw dust because

Saw dust does not stick to the ice.
Saw dust will not get melted easily.
Saw dust is poor conductor of heat.
Saw dust is a good conductor of heat.

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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
Marconi first tranmitted a wireless signal
Madame Marie Curie became the first woman Nobel Prize winner

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Physics
A standing wave occurs when

The amplitude of a wave exceeds its wavelength
A wave reflects upon itself
The speed of the wave is zero or near zero
Two waves overlap

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