Question # 1

In the presence of a charged body, an insulated conductor develops positive charge at one end and negative charge at the other end, this i- called:

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Electrostatics

Electrostatic induction

Magnetism

Electromagnetic induction

Which is used to investigate the properties of electron beam:

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LDR

Electroscope

Proton gun

Electron gun

The speed of sound in are water at 25°C is:

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1530ms-1

1531ms-1

1560ms-1

1570ms-1

The SI the unit of charge is:

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Jpi;e

Volt

Coulomb

Watt

To hear echoes, the minimum distance of the obstacle from source of sound should be:

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10m

15m

17m

20m

At room temperature, electrons cannot escape the metal surface due to ………….. of atomic nucleus:

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Repulsive forces

Attractive forces

Gravitational forces

Electromagnetic forces

Unlike charges always:

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Repel each other

Attract each other

Sometimes repel and attract each other

Both A and B

Mice can hear frequencies upto:

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100, 000 Hz

25.000 Hz

120,000 Hz

1,000 Hz

Frequency of tuning fork depends upon its …………. of prongs:

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Weight

Speed

Mass

Distance

Which device is used to store charge:

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Resister

Capacitor

Dielectric

Fuse

Electric potential is a quantity:

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Scalar

Vector

Base

All

The frequency of silent whistle is:

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20,000 Hz – 25000Hz

2000 Hz – 2500Hz

200 KHz – 2000 Hz

25000 KHz

The speed of sound in air at 21 °C is:

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336ms^-1

343ms^-1

430ms^-1

470ms^-1

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10th Class Physics Chapter 13 Electrostatics English Medium KPK Boards Online Mcqs MCQs With Answers

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