Question # 1

One thouseand watt power is called.

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One mega watt

One giga watt

One hector watt

One kilowatt

The principal of light on whihc the fibre optics works is.

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Reflection

Refraction

Total internal reflection

Dispersion

The examples of semi - conductors:

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sodium and potassium

calcium and potassium

Germanium and silicon

carbon and nitrogen

The mass of Beta particle:

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0

4

2

1

----------------- rays are used to detect the flaws and crocks of metal parts.

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a -rays

gama rays

beta rays

None of these

By burning fossil fuels we get.

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Solar power

Tidal power

Nuclear power

Thermal power

The unit of energy is.

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Newton

Metre

Joule

Second

In Ohm's law V =

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V/I

I

RI

R/I

The charge on alpha particle is:

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1

2

4

6

If we increasing angle of incidence then at a particular angle incidence the angel of refraction is.

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45 ^o

60 ^o

30 ^o

90 ^o

Space station that looks like a shining planet in space is.

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Metostat

Cyclone

Mir

Both a and b

One Btu is equal to.

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1100 joules

1055 Joules

1050 Joules

1040 Joules

In P-type semi -conductior, most of the current is due to.

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Free electron

Holes

Positive ions

Heat

in binary system. 37 is written as.

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101101

100101

110011

101011

V_s / V_{p is equal to.}

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Vp / Vs

Np / Ns

Ns / Np

None

Pakistan institute of Nuclear science and technology was established in;

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1960

1965

1966

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