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Physics

Physics
What type of lens is a magnifying glass?

Diverging
Achromatic
Spherical
Converging

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Physics
Which of the following are methods of heat transfer?

Evaporation
Revolution
Convection
Thermal Expansion

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Physics
Infrasonic sound has a frequency lower than

5 Hz
32 Hz
20 Hz
15 Hz

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Physics
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

4.33 N
5.33 N
6.33 N
3.33 N

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Physics
Who gave the Theory of Relativity?

Isaac Newton
Albert Einstein
Galileo Galilei
Archimedes

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Physics
Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

Rough white
Shining black
Rough black
Shining white

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