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 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

2 / 56

Gamma rays are also called __________

Photons

Electrons

Protons

Positrons

3 / 56

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

Sublimation

Deflection

Ionization

Penetration

4 / 56

Mass energy equation and theory of relativity was given by___________

Newton

Volta

Quantum

Einstein

5 / 56

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

Cosmic Rays

X-Rays

Radon Gas

None of these

6 / 56

The temperature of the center of sun is _________

29 Million Kelvin

02 Million Kelvin

24 Million Kelvin

20 Million Kalvin

7 / 56

The half-life of C-14 is ______

5202 Years

5720 Years

5700 Years

5730 Years

8 / 56

Elements are naturally unstable having atomic number greater than_________

88

82

89

84

9 / 56

In which simplest atom, nucleus has only one proton?

Hydrogen

Helium

Nitrogen

Carbon

10 / 56

Isotopes are atoms of same element with different _______

Atomic Mass

Number of Protons

Atomic Number

Number of Electrons

11 / 56

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

Nucleus

Molecule

Atom

Shell

12 / 56

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

γ particles

α-Particle

β-Particles

X-Rays

13 / 56

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

330

238

92

146

14 / 56

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

Rutherford

Pierre

Becquerel

Marie Curie

15 / 56

____________ are collectively called nucleons.

neutrons in nucleus

Protons and Neutrons in Nucleus

Protons in nucleus

electrons in shell

16 / 56

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

N

A

Z

None of these

17 / 56

In each fission reaction energy released__________

255meV

200MeV

210meV

299mV

18 / 56

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

Unstable Nuclei Present

Electrons Present

Stale Nuclei Present

Proton Present

19 / 56

Charge on alpha particles is ________

4e

2e

5e

3e

20 / 56

Release of energy by the sun is due to ________

Nuclear Fusion

Nuclear Fission

Burnings of Gases

Chemical Reaction

21 / 56

6

10

8

3

22 / 56

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

Smaller

Equal

Greater

Anyone of these

23 / 56

Which Option is Correct ?

Option-2

Option-3

Option-1

Option-4

24 / 56

Stable nuclei have atomic number between__________

2-85

2-89

2-88

1-82

25 / 56

Which are chemical compounds containing some quantity of radioisotope?

Radioactive Tracer

Soft Compounds

High Energy Compounds

Hard Compounds

26 / 56

Which among the following radiations has more penetrating power?

All Have the Same Penetrating Capability

A Beta Particle

An Alpha Particle

A Gamma Ray

27 / 56

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

Both Isotopes & Nuclide

Isotopes

Nuclide

None of these

28 / 56

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

One Quarter

One Eight

One half

None of these

29 / 56

Stream of high energy electrons_____________

α particles

β-Particles

γ-particles

∑-particles

30 / 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.

31 / 56

Which option is Correct

Option-3

Option-1

Option-4

Option-2

32 / 56

The total number of nucleons in a nucleus is__________

none of these

Atomic number

Atomic Mass Number

Isotope number

33 / 56

Hazards of radiation for humans are_____________

Sterility

All Given

Blindness

Leukemia

34 / 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

35 / 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-3

Option-1

Option-4

Option-2

36 / 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

37 / 56

Half-life of   (60-27)Co is _________

50 years

20 years

40 years

30 years

38 / 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-2

Option-3

Option-4

Option-1

39 / 56

Transmutation is _____________

No spontaneous process

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

Spontaneous process

Unstable nuclei changes into stale nuclei

40 / 56

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

Dosimeter

Film Badge

Radiometer

Both "Film Badge" & "Dosimeter"

41 / 56

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

Stays the Same

Increases By 1

Decreases By 1

Decreases By 2

42 / 56

The number of neutrons in a nucleus is represented by_______

A

N

Z

None of these

43 / 56

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

Atomic Number

Isotope number

none of these

Atomic mass number

44 / 56

The reason carbon dating works is that __________

When a plant or an animal die

Plants and animals are such strong emitters of carbon-14

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

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

45 / 56

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

Disintegration

Nuclear Fusion

Bombardment

Nuclear Fission

46 / 56

Radium-226 has a half-life of _____________

1600 years

1820 years

1920 years

1620 years

47 / 56

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

I-131

Co-60

C-14

P-32

48 / 56

A nucleon is _________ times heavier than electron.

1836

1841

1832

1827

49 / 56

Which compound is used for diagnosis of brain tumor?

Neon-152

iodine-131

hydrogen-3

Phosphorus-32

50 / 56

Isotopes of an element have the same____________

Atomic Number

Chemical Properties

Atomic Mass Number

Colors

51 / 56

Tritium contains one proton, while protium and deuterium contains_________

One Protons

Three Protons

Two Protons

No Proton

52 / 56

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

C-14

P-32

Co-60

I-131

53 / 56

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

Release Chemical Energy

Release Nuclear Energy

Absorb Chemical Energy

Absorb Nuclear Energy

54 / 56

The atomic number is represented by_______

Z

None of these

N

A

55 / 56

Nuclear fission was first observed in 1939 by__________

Otto Hahn and Rutherford

Otto Han and Curie

Otto Hahn and Frits Strassman

First and Curie

56 / 56

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

1-130

1-132

1-131

1-129

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Chapter-17 – Information Technology 

Chapter-18 – Atomic and Nuclear Physics

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