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Atomic and Nuclear Physics:

The most interesting and important Subject Physics of 10th Class Chapter-18. Student want to know the important Questions and  physics notes for 10th class , to prepare it according to BISE Punjab. We are providing the Solution of Student Problems.

Here are important MCQs for 10th Class Physics Chapter # 18

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Physics Ch#18, 10th Class

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1 / 56

Stable nuclei have atomic number between__________

2-88

2-89

1-82

2-85

2 / 56

The reason carbon dating works is that __________

After plant of animal dies, it stops taking in fresh carbon-14

There is so much non-radioactive carbon dioxide in the air

When a plant or an animal die

Plants and animals are such strong emitters of carbon-14

3 / 56

When Uranium (98 protons) ejects a beta particle, how many protons are let in the remaining nucleus?

91 Protons

93 Protons

89 Protons

92 Protons

4 / 56

Which statement is correct about isotopes?

Protium, deuterium and tritium are isotopes of hydrogen

All of these

Atoms of an element have different number of neutrons in their nuclei

Atoms of an element have same number of protons.

5 / 56

In each fission reaction energy released__________

200MeV

299mV

210meV

255meV

6 / 56

The half-life of C-14 is ______

5700 Years

5720 Years

5202 Years

5730 Years

7 / 56

The stable argon nuclide Ar-40 half life___________

• 2.4 x 10⁸ years
• 2.69 x 10⁴ years
• 2.5 x 10⁹ years
• 2.4 x 10¹¹ years

Which Option is Correct ?

Option-1

Option-2

Option-4

Option-3

8 / 56

Which Radioactive isotope is used for curing cancerous tumors and cells?

C-14

P-32

I-131

Co-60

9 / 56

The number of protons and neutrons in a nucleus or atomic mass is represented by______

Z

None of these

N

A

10 / 56

When heavy nucleus splits into two lighter nuclei, the process would _____________

Absorb Nuclear Energy

Absorb Chemical Energy

Release Chemical Energy

Release Nuclear Energy

11 / 56

Nuclear fission was first observed in 1939 by__________

First and Curie

Otto Hahn and Frits Strassman

Otto Hahn and Rutherford

Otto Han and Curie

12 / 56

The mass of the proton and neutron is nearly equal to___________

• 1.67 x 10^-27 kg
• 1.67 x 10^-31 kg
• 1.67 x 10^-19kg
• 1.67 x 10^-21 kg

which Option is Correct ?

Option-1

Option-2

Option-3

Option-4

13 / 56

Mass energy equation and theory of relativity was given by___________

Einstein

Quantum

Newton

Volta

14 / 56

Charge on alpha particles is ________

2e

5e

4e

3e

15 / 56

Which option is Correct

Option-3

Option-2

Option-1

Option-4

16 / 56

6

3

10

8

17 / 56

One of the isotopes of uranium is U(238-92)  the number of neutrons in this isotope is ___________

330

146

238

92

18 / 56

When two lights nuclei combine to form a heavier nucleus, this process is called_______

Nuclear Fission

Bombardment

Disintegration

Nuclear Fusion

19 / 56

Radium-226 has a half-life of _____________

1820 years

1600 years

1620 years

1920 years

20 / 56

The earth and all living things receive radiation from outer space which name is __________

None of these

Radon Gas

X-Rays

Cosmic Rays

21 / 56

When a tree dies, which radioactive isotope present in plant starts decaying?

C-14

I-131

P-32

Co-60

22 / 56

Which are chemical compounds containing some quantity of radioisotope?

High Energy Compounds

Soft Compounds

Radioactive Tracer

Hard Compounds

23 / 56

The temperature of the center of sun is _________

02 Million Kelvin

24 Million Kelvin

29 Million Kelvin

20 Million Kalvin

24 / 56

Isotopes are atoms of same element with different _______

Atomic Number

Number of Protons

Number of Electrons

Atomic Mass

25 / 56

The rate of radioactive decay is proportional to the number of __________

Stale Nuclei Present

Electrons Present

Proton Present

Unstable Nuclei Present

26 / 56

Hazards of radiation for humans are_____________

Blindness

All Given

Sterility

Leukemia

27 / 56

Stream of high energy electrons_____________

β-Particles

α particles

∑-particles

γ-particles

28 / 56

The total number of protons in a nucleus or total number of electrons in the orbits is __________

none of these

Atomic Number

Atomic mass number

Isotope number

29 / 56

The number of neutrons in a nucleus is represented by_______

A

Z

None of these

N

30 / 56

Which among the following radiations has more penetrating power?

An Alpha Particle

A Beta Particle

A Gamma Ray

All Have the Same Penetrating Capability

31 / 56

What happens to the atomic number of an element which emits 1 alpha particle?

Stays the Same

Decreases By 2

Increases By 1

Decreases By 1

32 / 56

In order to find the intensity of radiations, which device can be used?

Both "Film Badge" & "Dosimeter"

Dosimeter

Film Badge

Radiometer

33 / 56

Tritium contains one proton, while protium and deuterium contains_________

Three Protons

One Protons

No Proton

Two Protons

34 / 56

The total number of nucleons in a nucleus is__________

Atomic number

Isotope number

Atomic Mass Number

none of these

35 / 56

Half-life of   (60-27)Co is _________

40 years

30 years

20 years

50 years

36 / 56

The atomic number is represented by_______

N

Z

None of these

A

37 / 56

Release of energy by the sun is due to ________

Nuclear Fusion

Burnings of Gases

Nuclear Fission

Chemical Reaction

38 / 56

Atoms of the element which have same number of protons but different number of neutrons are__________

Both Isotopes & Nuclide

None of these

Isotopes

Nuclide

39 / 56

Penetrating power of γ rays as compared to α rays and β rays is __________

Equal

Smaller

Anyone of these

Greater

40 / 56

The phenomenon by which radiations split matter into positive and negative ion is called ____

Ionization

Penetration

Deflection

Sublimation

41 / 56

Which have the greatest power of ionization s compared to others?

X-Rays

β-Particles

α-Particle

γ particles

42 / 56

Transmutation is _____________

No spontaneous process

Spontaneous process

Both "Unstable nuclei changes into stale nuclei" & "Spontaneous process"

Unstable nuclei changes into stale nuclei

43 / 56

During fission of 1kg of Uranium -235 energy released is ___________

• 67 x 10¹⁰J
• 65 x 10⁸J
• 60 x 10⁸J
• 66 x 10⁹J

Which Option is Correct ?

Option-4

Option-2

Option-3

Option-1

44 / 56

Half-life of plutonium (236 96 Pu) is 2.85 years and 242 94 Pu is _____________

• 3.79 x 10⁵ years
• 7.1 x 10⁸ years
• 2.85 years
• 7.1 x 10¹⁰ years

Which Option is Correct ?

Option-4

Option-1

Option-3

Option-2

45 / 56

Gamma rays are also called __________

Electrons

Protons

Photons

Positrons

46 / 56

In which simplest atom, nucleus has only one proton?

Nitrogen

Hydrogen

Helium

Carbon

47 / 56

Who accidentally discovered that uranium salt crystals emit an invisible radiation that can darken a photographic plate?

Becquerel

Marie Curie

Rutherford

Pierre

48 / 56

Which Option is Correct ?

Option-1

Option-4

Option-3

Option-2

49 / 56

Rutherford discovered that the positive charge in an atom was concentrated in a small region called__________

Nucleus

Atom

Molecule

Shell

50 / 56

Which compound readily accumulated in the thyroid gland and can be used for monitoring of thyroid functioning?

1-130

1-129

1-131

1-132

51 / 56

____________ are collectively called nucleons.

neutrons in nucleus

Protons and Neutrons in Nucleus

Protons in nucleus

electrons in shell

52 / 56

Elements are naturally unstable having atomic number greater than_________

88

82

89

84

53 / 56

Which compound is used for diagnosis of brain tumor?

hydrogen-3

Phosphorus-32

Neon-152

iodine-131

54 / 56

A nucleon is _________ times heavier than electron.

1836

1827

1832

1841

55 / 56

Isotopes of an element have the same____________

Colors

Atomic Mass Number

Atomic Number

Chemical Properties

56 / 56

The half life of a certain isotope is 1 day. What is the quantity of the isotope after 2 days?

One half

One Quarter

None of these

One Eight

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MCQs Chap # 18 – Physics 10th

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Chapter wise PDF Notes / Problems / Numerical Solution of Physics

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Chapter-12 – Geometrical Optics 

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Chapter-17 – Information Technology 

Chapter-18 – Atomic and Nuclear Physics

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