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Physics

Physics
What is colour of light related to ?

Frequency
Quality
Amplitude
Velocity

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Physics
In SONAR which kind of wave is used?

Ultrasonic
Infrasonic
Audible sound
Radio

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Physics
A device which is used to limit the current in an electrical circuit is called a

Fuse
Hub
Grid
Conductor

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Physics
Which one type of radiation has the longest wave length

Ultraviolet
Radio Wave
X-ray
Infrared

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Physics
When a bar magnet is cut into two equal halves, the pole strength of each piece –

Becomes double
Becomes half
Remains the same
Becomes zero

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Physics
Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below.

3 and 4 only
1, 2 and 3 only
1, 2, 3 and 4
4 only

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