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Physics

Physics
Coolis tube is used to produce

Radio waves
Micro waves
Gama rays
X-rays

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Physics
The audio signals of TV are

Unmodulated
Amplitude modulated
Frequency modulated
Velocity modulated

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Physics
Radio telescopes are better than optical telescopes because

they can work during the day and night
All of these
they can work even in cloudy conditions
they can detect faint galaxies which no optical telescope can

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Physics
Acceptable noise level for human ear

= 85 db
< 85 db
> 85 db
None of these

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Physics
An electric fuse is based on

All of these
The chemical effect of the current
The heating effect of the current
The magnetic effect of the current

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Physics
Negative acceleration is in the opposite direction of:

Distance
Force
Momentum
Velocity

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MORE MCQ ON Physics

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