Question # 1

What is the voltage across a 6Ω resister when 3A current passes through it?

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2V

9V

18V

36V

Nichrome wire is an alloy of:

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Lead and zinc

Silver and copper

Nickel and chromium

Iron and copper

Critical angle for diamond is:

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60^o

24^o

26^o

49^o

The speed of sound in the air at one atmospheric pressure at room temperature is:

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343 ms-1

346 ms-1

349 ms-1

339 ms-1

How Galvanometer is connected in circuit to detect current:

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In series

In parallel

Fixed

Variable

The S.I unit of Spring constant is:

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Nm

N

Nm-1

Ns

Which of the following devices can be used to produce both a transverse and longitudinal waves?

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A string

A ripple tank

A helical spring

A tuning fork

Radiation was found in:

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1896

1895

1897

1898

If the distance between the charged bodies is much greater as compared to their sizes then the bodies are considered is:

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Positive charge

Negative charge

Point charge

Zero charge

Which of the following devices can be used to produce both a transverse and longitudinal waves:

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A string

A ripple tank

A helical spring (slinky)

A tuning fork

For the emission of electrons from the tungsten filament the values of current and voltage are taken as:

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0.1 A and 2V

0.2 A and 4V

0.3A and 6V

0.4A and 8V

When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90^o is called:

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angle of incidence

critical angle

angle of refrection

None of these

The ray of the light after reflection from concave mirror passes through:

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Centre

Principal focus

Pole

None of these

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

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