Question # 1

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

Sound waves are an example of:

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Transverse waves

Electromagnetic waves

Longitudinal waves

All of these

A data storage device is:

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Printer

Hard disk

Monitor

CPU

Short form of information Technology is:

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IT

ITS

CBIS

IS

Value of ‘k’ depends upon:

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System of unit

Nature of medium

Both a and b

None of these

Electroscope is used for detecting:

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Current

Charge

Voltage

Resistance

An object is 14 cm is front of a convex mirror. The image is 5.8 cm behind the mirror. What is the focal length of the mirror?

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4.1 cm

8.2 cm

9.9 cm

20 cm

Radio waves are:

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Longitudinal waves

Transverse waves

Electromagnetic waves

All of these

The motion in which the friction reduces the mechanical energy of the system as times passes and the amplitude of motion reduces is called:

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SHM

Randum motion

Damped motion

None of these

The time period of frequency and time period is equal to:

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v

1

0

λ

To see from submarine the ship at the surface of water , we use:

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Telescope

Microscope

Peri scope

Prism

Electronic message is called:

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Internet

Browser

E-mail

Computer

The refractive index of ice is:

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1.00

1.33

1.31

2.42

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Physics 10th Class English Medium Online Test MCQs With Answers

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