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Physics

Physics
The surface tension of water on adding detergent to it

Decreases
No change
Becomes zero
Increases

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Physics
The size of gear is usually specified by

Diametral pitch
Pitch circle diameter
Pressure angle
Circular pitch

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Physics
What is the escape velocity of the rocket in the earth?

11.2 km/sec
13.2 km/sec
10.2 km/sec
12.2 km/sec

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Physics
When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is

The blue ray
The green ray
The red ray
The violet ray

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Physics
A device used for converting a.c. into d.c. is called

Transformer
Induction coil
Dynamo
Rectifier

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Physics
Sound travels fastest in

Glass
Air
Water
Vacuum

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MORE MCQ ON Physics

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