Question # 1

The product of frequency and time period is equal to:

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v

0

1

L

Wave transfer

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Energy

Frequency

Wavelength

Velocity

In 1950, physicists observed that in cathode ray tube a special type of rays produced from cathode, these rays were called:

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Cathode rays

X-rays

Alpha rays

Gamma rays

The voltage is decreased by:

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Step-up transformer

Step-down transformer

A.C. generator

D.C. Motor

The example of magnetic disk is:

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Compact disk

Floppy disk

Audio cassette

Video cassette

A positive electric charge:

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Attracts other positive charge

Repels other positive charge

Attracts a neutral particle

Repels a neutral particle

The Half life of a certain isotopes is 1 day. What is the quantity of isotopes after 2 days?

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One half

One quarter

One eight

None of these

The SI unit of electric field intensity is:

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NC-2

NC-1

Ns

Nm-1

Which of the following tasks are performed by most of the algorithms?

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Input

Out put

Processing

All of these

Which element is used to locate the ulcer in brain?

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Iodine-131

Phosphorus-32

Carbon-14

Potassium-40

The frequency of silent whistle is:

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20,000 Hz - 25000 Hz

2000 Hz - 25000 Hz

200 Hz - 2000 Hz

25000 Hz

The converter of analogue to digital signal is:

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ADC

DAC

ATDC

None of these

The device which is used to convert sound waves into electrical signal is called:

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Ear piece

Microphone

Transmission channel

Receiver

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Physics 10th Class English Medium Online Test MCQs With Answers

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