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Physics

Physics
The washing machine works on the principle of

Diffusion
Dialysis
Centrifugation
Reverse osmosis

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Physics
Which colour has the highest frequency?

Red
Violet
Green
Indigo

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Physics
If velocity is constant then acceleration is what?

Infinite
Zero
Constant
Increasing

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Physics
Hydroscope is an instrument that shows changes in:

None of these
Sound under water
Atmospheric humidity
Density of liquid

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Physics
An object having the capability to do work is said to possess

Force
Energy
Inertia
Pressure

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Physics
Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?

3.3 km, 0.30 km
2.8 km, 0.25 km
1.8 km, 0.15 km
2.2 km, 0.20 km

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