Physics
The time period of a pendulum when taken to the Moon would:

Increase
Become zero
Decrease
Remain the same

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Physics
It is easier to roll a stone up a sloping road than to lift it vertical upwards because

Work done in rolling is more than in lifting.
Work done in lifting the stone is equal to rolling it.
Work done in rolling a stone is less than in lifting it.
Work done in both is same but the rate of doing work is less in rolling.

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Physics
Why does bleeding occur through the nose in high mountainous regions ?

The pressure at high altitudes is greater than that on the plains
The blood pressure fluctuates and finally decreases drastically
The blood pressure of a person increases at high altitudes
The pressure of blood in capillaries is greater than the outside pressure

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