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.

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Physics Ch#18, 10th Class

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1 / 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-2

Option-3

Option-1

Option-4

2 / 56

In each fission reaction energy released__________

210meV

255meV

200MeV

299mV

3 / 56

Tritium contains one proton, while protium and deuterium contains_________

One Protons

No Proton

Three Protons

Two Protons

4 / 56

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

Absorb Chemical Energy

Absorb Nuclear Energy

Release Chemical Energy

Release Nuclear Energy

5 / 56

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

Radiometer

Dosimeter

Both "Film Badge" & "Dosimeter"

Film Badge

6 / 56

The atomic number is represented by_______

N

Z

A

None of these

7 / 56

In which simplest atom, nucleus has only one proton?

Helium

Hydrogen

Nitrogen

Carbon

8 / 56

Release of energy by the sun is due to ________

Nuclear Fusion

Chemical Reaction

Nuclear Fission

Burnings of Gases

9 / 56

Which compound is used for diagnosis of brain tumor?

iodine-131

hydrogen-3

Phosphorus-32

Neon-152

10 / 56

The number of neutrons in a nucleus is represented by_______

Z

A

None of these

N

11 / 56

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

Electrons Present

Proton Present

Stale Nuclei Present

Unstable Nuclei Present

12 / 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-3

Option-4

Option-2

Option-1

13 / 56

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

N

Z

A

None of these

14 / 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

15 / 56

Stream of high energy electrons_____________

γ-particles

α particles

β-Particles

∑-particles

16 / 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-2

Option-3

Option-4

Option-1

17 / 56

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

Shell

Atom

Nucleus

Molecule

18 / 56

Stable nuclei have atomic number between__________

2-89

1-82

2-88

2-85

19 / 56

Half-life of   (60-27)Co is _________

40 years

50 years

30 years

20 years

20 / 56

Elements are naturally unstable having atomic number greater than_________

88

82

89

84

21 / 56

The half-life of C-14 is ______

5202 Years

5730 Years

5700 Years

5720 Years

22 / 56

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

Nuclear Fission

Bombardment

Disintegration

Nuclear Fusion

23 / 56

Which are chemical compounds containing some quantity of radioisotope?

Soft Compounds

Hard Compounds

Radioactive Tracer

High Energy Compounds

24 / 56

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

1-130

1-131

1-132

1-129

25 / 56

6

8

3

10

26 / 56

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

Isotopes

None of these

Nuclide

Both Isotopes & Nuclide

27 / 56

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

330

238

92

146

28 / 56

Which Option is Correct ?

Option-1

Option-4

Option-2

Option-3

29 / 56

Mass energy equation and theory of relativity was given by___________

Volta

Newton

Einstein

Quantum

30 / 56

Transmutation is _____________

Spontaneous process

Unstable nuclei changes into stale nuclei

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

No spontaneous process

31 / 56

____________ are collectively called nucleons.

Protons and Neutrons in Nucleus

Protons in nucleus

electrons in shell

neutrons in nucleus

32 / 56

Radium-226 has a half-life of _____________

1600 years

1920 years

1620 years

1820 years

33 / 56

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

Penetration

Ionization

Sublimation

Deflection

34 / 56

The total number of nucleons in a nucleus is__________

Isotope number

none of these

Atomic Mass Number

Atomic number

35 / 56

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

Stays the Same

Decreases By 2

Decreases By 1

Increases By 1

36 / 56

Isotopes are atoms of same element with different _______

Number of Electrons

Atomic Number

Atomic Mass

Number of Protons

37 / 56

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

β-Particles

X-Rays

α-Particle

γ particles

38 / 56

Which statement is correct about isotopes?

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

Protium, deuterium and tritium are isotopes of hydrogen

Atoms of an element have same number of protons.

All of these

39 / 56

The temperature of the center of sun is _________

29 Million Kelvin

24 Million Kelvin

20 Million Kalvin

02 Million Kelvin

40 / 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-1

Option-3

Option-2

Option-4

41 / 56

Which among the following radiations has more penetrating power?

A Beta Particle

An Alpha Particle

A Gamma Ray

All Have the Same Penetrating Capability

42 / 56

Charge on alpha particles is ________

3e

5e

2e

4e

43 / 56

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

Co-60

C-14

P-32

I-131

44 / 56

Nuclear fission was first observed in 1939 by__________

Otto Hahn and Frits Strassman

First and Curie

Otto Hahn and Rutherford

Otto Han and Curie

45 / 56

Gamma rays are also called __________

Positrons

Photons

Electrons

Protons

46 / 56

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

C-14

I-131

P-32

Co-60

47 / 56

Which option is Correct

Option-2

Option-4

Option-3

Option-1

48 / 56

Hazards of radiation for humans are_____________

Leukemia

Blindness

Sterility

All Given

49 / 56

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

Anyone of these

Greater

Smaller

Equal

50 / 56

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

X-Rays

Cosmic Rays

Radon Gas

None of these

51 / 56

Isotopes of an element have the same____________

Atomic Number

Atomic Mass Number

Colors

Chemical Properties

52 / 56

A nucleon is _________ times heavier than electron.

1827

1841

1836

1832

53 / 56

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

92 Protons

89 Protons

91 Protons

93 Protons

54 / 56

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

Pierre

Marie Curie

Rutherford

Becquerel

55 / 56

The reason carbon dating works is that __________

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

Plants and animals are such strong emitters of carbon-14

When a plant or an animal die

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

56 / 56

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

None of these

One half

One Quarter

One Eight

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Chapter-18 – Atomic and Nuclear Physics

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