Question # 1

The temperature at the centre of sun is.

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10 million k

20 million k

30 million k

35 million k

The colour of live wire is:

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Black or blue

Green or yellow

White or grey

Red or brown

battery is one of the source of:

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heat

light

current

sound

According to ohm’s law V= :

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I²R

IR²

IR

I/R

When resistances are connected in series the current passing through them is:

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Different

Zero

The same

None of these

the range of galvanometer to measure current is:

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few amperes

few micro amperes

few milli amperes

mega amperes

The A.C used in Pakistan has frequency:

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60 Hz

30 Hz

50 Hz

130 Hz

What happen to the atomic number of an element which emits one alpha particle?

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Increase by 1

Stays the same

Decrease by 2

Decrease by 1

Nuclear fission was first observed in

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1936

1937

1938

1939

A thermistor is a dependent resistors:

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Heat

temperature

energy

mass

The half life of radium 226 is

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1600 year

1610 years

1620 years

1630 years

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

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Alpha

Beta

Gamma

Alpha and beta

Radioactive isotopes present in atmosphere is

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Cobalt -60

Ph-32

Carbon -14

Carbon -20

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10th Class Physics Chapter 18 Radioactivity English Medium KPK Boards Online Mcqs MCQs With Answers

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