Question # 1

Which of the following are electromagnetic waves:

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sound

water waves

Ultrasound

light

Which of the following is a natural fiber:

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Teflon

Cotton

Acrylic

Nylon

Energy possessed bu a body due to its motion is known as:

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Kinetic energy

Heat energy

Electric energy

Chemical

The working principle of transformer:

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Electromagnetic conduction

Electrostatic induction

Electric charge

Neutralization

In ........ henry Bequeral discovered.

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1895

1886

1896

1898

The constant in Ohm's law is.

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Current

Resistance

Potential difference

Charge

The number of hovering satellites which can send transmissions to all over the world:

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one

Two

Three

Four

Ammeter is always connected with a circuit in.

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parallal

Series

Both a and b

None of these

The Phenomenon of emission of radiations from radioactive elements is called:

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Doping

Allotropy

Radioactivity

Induction

The conversion of the kinetic energy of running water to electrical energy is called

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power production

Thermal power

Hydroelectric power

Nuclear power

In Ohm's law V =

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V/I

I

RI

R/I

1 m A is equal to.

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10^-3A

10^-6A

10^-2 A

10^-8A

The Si unit of current is:

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Ohm

Ampere

Kilowatt

Coulomb

Hovering satellite completes its rotation in 24 hours at the height of:

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360 km

3600 km

36000 km

360000 km

Cause of air pollution is.

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Carbon Monoxide

Sulphur di oxide

Nitrogen oxide

All of them

The conductors having larges resistance are called:

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Fuses

Switches

Resistors

Capacitors

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