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Physics

Physics
The density of water is 1 g/cc. This is strictly valid at

100°C
25°C
0°C
4°C

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Physics
A machine powered by rotating blades is a

Fumerole
None of these
Solar panel
Turbines

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Physics
Why is it difficult to breathe at higher altitudes?

Due to ozone
Due to high humidity
Due to low air pressure
Due to low temperature

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Physics
A person does some work of 1,000 J in 2 s. His power will be ________

500W
50W
1000W
25W

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Physics
The wave like properties of electrons are useful in

Magnifying objects
All of these
Weather reports
Lasers

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Physics
Two stones of unequal masses are thrown vertically up with the same velocity. Which of the following will happen?

Both will reach the same height
Any of them may reach greater height
The lighter mass will reach greater height
The heavier mass will reach greater height

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