Question # 1

Which radiations are free of effect of electric and magnetic field?

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Alpha

Beta

Gamma

Alpha and beta

The refractive index of ice is:

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1.00

1.33

1.31

2.42

In case of OR and AND operation, if switches s₁ and s₂ both are open then lamp is:

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On

Off

Sometimes on and sometimes off

Neither on nor off

When you rub a plastic rod against your hair several times and put it near some bits of paper, the pieces of papers are attracted towards it. What does this observation indicate:

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The rod and the paper are oppositely charged

The rod acquires a positive charge

The rod and the paper have the same charges

The rod acquires a negative charge

1 GB = ______________ Megabytes.

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1022

1023

1024

1025

Short form of information Technology is:

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IT

ITS

CBIS

IS

An object gains excess negative charge after being rubbed against another object, which is:

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Neutral

Negatively charged

Charged

Either, a,b,and c

If the mass of bob of a simple pendulum is doubled, its time period:

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Is doubled

Becomes four times

Remains same

Becomes half

A parallel circuit is also used as a divider for:

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Power

Resistance

Current

Voltage

Electric field lines:

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always cross each other

never cross each other

cross each other inthe region of strong field

cross each other in the region of weak field

To get a design on the computer screen by moving a pointer with the help of mouse is called:

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word processing

graphic designing

data managing

telecommunication

CD which is made of soft material is called:

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Hard disk

Floppy disk

Iron disk

Copper disk

Specific resistance of silver = ________ x 10^-sOhm-meter

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5.25

2.75

1.69

1.62

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