Question # 1

A particles equal or greater in mass than of protons are called.

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Baryons

Leptons

Mesons

Quarks

Curie is unit of.

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Conductivity

Binding energy

Radioactivity

Resistivity

When nitrogen is bombarded by alpha particles nitrogen nucleus changes into

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Oxygen

Carbon

Barium

Helium

Mass equivalent of 931 MeV energy is:

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6.02 x 10^-23 kg

1.766 x 10^-27kg

2.67 x 10^-29kg

6.02 x 10^-87kg

Both xenon and caesium each have:

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41 isotopes

36 isotopes

43 isotopes

33 isotopes

Which one belongs to lepton's group

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Electron

Muons

Neutrons

All of these

The total charge of any nucleus is:

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Ze

Z

Both a and b

None of above

The mass of proton in amu is:

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1.07276

1.7276

1.007276

1.0007276

Iodine -131 is used for the treatment by

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Bones

Eyes

thyroid glands

Lungs

The potential difference between the top and bottom of a cloud chamber is of the order of

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290 v

400 v

1 kv

None of above

Gamma radiations are emitted due to:

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De-excitation of atom

De-excitation of nucleus

Excitation of atom

Excitation of nucleus

Which pair belongs to hadrons.

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Protons and Neutrons

Neutrons and electrons

Photons and electrons

positrons and electrons

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

The energy of photon for photoelectric effect is less than

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1 MeV

2 MeV

5 MeV

8 MeV

How many neutrons are there in the nuclide Zn⁶⁶?

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22

30

36

66

Various types of cancer are treated by

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Carbon -14

Nickel -63

Cobalt -60

Strontium -90

Low level radiations effects

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Less of hair

Ulceration

Drop of white blood cells

All

1 gray is equal to.

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1 JKg-1

1KgJ-1

1JKg

1 JKg-2

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Physics ICS Part 2 Chapter 21 Online MCQ's Test MCQs With Answers

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