Question # 1

Which particles are nucleons?

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Electrons and protons

Protons and neutrons

Electrons and neutrons

Electrons and positrons

the resistance of conductor is inversely to:

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temperature

length

area of cross section

pressure

with the increase in temperature the resistance of pure metals:

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increases

decreases

remains same

none of these

When 1 tonne of coal is burnt then amount of energy is released .

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36 x 10⁸ J

36 x 10⁹J

36 J

36 x 10¹⁰J

by connecting suitable high resistance in series with galvanometer it will convert into:

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voltmeter

galvanometer

ammeter

multimeter

What is the amount of current passing through an electric heater, if it takes 1800C charge pass through it in 3 minute:

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16 A

10 A

100 A

0.1 A

earth wire is connected with those appliances whose casing is made of:

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metals

wood

glass

plastic

The half life of argon nuclide Ar-40 is:

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2 x 10⁸years

2 .2x 10⁸years

2.4x 10⁸years

2.8x 10⁸years

What happen to the atomic number of an element which emits one alpha particle?

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Increase by 1

Stays the same

Decrease by 2

Decrease by 1

Release of the energy by the sun is due to:

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Nuclear Fussion

Nuclear Fission

Burning of gases

Chemical reaction

Which instrument is used to detect current:

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Galvanometer

Voltmeter

Ammeter

Electroscope

The half life of Lead Pb is

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10 hour

10.10 hours

10.6 hours

1 year

The property of substance, which opposes the flow of current through it is called:

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Resistance

Reactance

Resistivity

None

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Physics 10th Class English Medium Unit 9 Online Test MCQs With Answers

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