Question # 1

The process of breaking a heavy nucleus after the bombardment of neutrons into two small nuclei is called:

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Nuclear fission reaction

Nuclear fusion reaction

Nuclear Radiation

Nuclear chain reaction

When we double the voltage in a simple electric circuit, we double the:

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Current

Power

Resistance

Both a and b

When a uranium (92 protons) ejects a beta particle, how many protons are left in the remaining nucleus?

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92 protons

91 protons

93 protons

89 protons

Radiation was found in:

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1896

1895

1897

1898

When a heavy nucleus splits into lighter nuclei,the process would.

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Release nuclear energy

absorb nuclear energy

Release Chemical energy

Absorb Chemical Energy

100x10³ A= :

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10^-3 A

10^-2 A

10 A

10^-1A

diamond des not conduct electricity, because it has no:

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free electrons

free protons

free neutrons

free positive charge

The rating of a fuse wire is always expressed in:

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ampere-hours

KWh

Volts

Amperes

As the temperature of a conductor rises, its resistance:

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Increases

Decreases

Does not change

None of these

For observing how fast plants are absorbing phosphate fertilizer we use.

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I.131

Ph -32

Co-60

Ar-40

The symbol of atomic mass number is:

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A

X

N

Z

Total energy supplied in driving one coulomb of charge around a complete circuit is called:

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Potential

Potential difference

Electromotive force

Potential energy

The half -life of carbon is

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5730 years

5700 years

5720 years

572 years

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Physics 10th Class English Medium Unit 9 Online Test MCQs With Answers

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