Question # 1

Compact discs, (according to the original CD specifications) hold how many minutes of music?

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74 mins

60 mins

Both a & b

None of these

One mile is equal to _______ kilometers

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1.725

1.108

1.609

1.475

Which device converts electrical energy into mechanical energy

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Generator

Steam engine

Electrical motor

Loudspeaker

LPT is the name used by MS-DOS. What is meant of this term?

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The first USB port on a computer

The first socket on a computer

The first pallael port on a computer

The first com port on a computer

Which atomic important at subatomic distances

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Apsara

Zerlina

Dhurva

Purnima -1

The names of the scientist, Newlands, Mendeleev and Meyer are associate with the development of

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Atomic structure

Metallurgy

periodic table of elements

Discovery of elements

If the linear momentum of a particle is doubled, then its kinetic energy will be

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Doubled

Quadrupled

Halved

None of these

Which of the following has o pH less than7?

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Blood

Tears

Pure water

saliva

A bus starts form X. the number of women in the bus is half of the number of men. In city enter, Now, number of men and women is equal. In the beginning , how many passengers entered in the bus

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15

30

36

45

The nuclear particles that are assumed to hold nucleons together are

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Electrons

Positrons

Neutrons

Mesons

Who in witnessing a supernova, argued that the heavens are not changeless?

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Tycho Brahe

Thomas Edison

James Chadwick

Albert Einstein

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