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Physics

Physics
Materials that allow electricity to flow are called

Insulators
Stimulators
Electron flows
Conductors

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Physics
A star appears twinkling in the sky because of

Diffraction of light by atmosphere
Scattering of light by atmosphere
Refraction of light by atmosphere
Reflection of light by atmosphere

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Physics
In a diesel engine the high temperature needed to ignite the fuel is achieved by

Using heat from exhaust
Compressing air in the cylinders
An electrical spark
The battery

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Physics
Every hot object emits ________

Visible light
Infrared rays
Ultraviolet rays
X–rays

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Physics
A car accelerates uniformly from 18 kmph to 72 kmph in 5 s. The acceleration of the car (in m/s2) is:

7
5
3
6

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Physics
Universal gates are

AND and XOR
AND and OR
NAND and NOR
OR and NOT

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MORE MCQ ON Physics

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