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

Isotopes are atoms of same element with different _______

Atomic Number

Number of Electrons

Number of Protons

Atomic Mass

2 / 56

Which Option is Correct ?

Option-4

Option-2

Option-3

Option-1

3 / 56

Stable nuclei have atomic number between__________

2-89

1-82

2-85

2-88

4 / 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 Quarter

One half

One Eight

5 / 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-3

Option-1

Option-2

6 / 56

Mass energy equation and theory of relativity was given by___________

Newton

Volta

Quantum

Einstein

7 / 56

Charge on alpha particles is ________

4e

3e

2e

5e

8 / 56

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

β-Particles

α-Particle

X-Rays

γ particles

9 / 56

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

Ionization

Sublimation

Deflection

Penetration

10 / 56

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

Bombardment

Nuclear Fusion

Nuclear Fission

Disintegration

11 / 56

Which among the following radiations has more penetrating power?

A Gamma Ray

All Have the Same Penetrating Capability

A Beta Particle

An Alpha Particle

12 / 56

Release of energy by the sun is due to ________

Chemical Reaction

Nuclear Fusion

Nuclear Fission

Burnings of Gases

13 / 56

Stream of high energy electrons_____________

γ-particles

α particles

β-Particles

∑-particles

14 / 56

Which are chemical compounds containing some quantity of radioisotope?

Radioactive Tracer

High Energy Compounds

Soft Compounds

Hard Compounds

15 / 56

Elements are naturally unstable having atomic number greater than_________

88

84

89

82

16 / 56

The temperature of the center of sun is _________

29 Million Kelvin

02 Million Kelvin

20 Million Kalvin

24 Million Kelvin

17 / 56

In which simplest atom, nucleus has only one proton?

Nitrogen

Hydrogen

Carbon

Helium

18 / 56

Gamma rays are also called __________

Electrons

Protons

Positrons

Photons

19 / 56

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

330

238

146

92

20 / 56

Transmutation is _____________

Spontaneous process

Unstable nuclei changes into stale nuclei

No spontaneous process

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

21 / 56

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

Radiometer

Film Badge

Dosimeter

Both "Film Badge" & "Dosimeter"

22 / 56

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

None of these

Z

A

N

23 / 56

Which option is Correct

Option-1

Option-2

Option-4

Option-3

24 / 56

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

92 Protons

89 Protons

93 Protons

91 Protons

25 / 56

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

Decreases By 2

Decreases By 1

Increases By 1

Stays the Same

26 / 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-4

Option-3

Option-2

Option-1

27 / 56

The reason carbon dating works is that __________

Plants and animals are such strong emitters of carbon-14

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

When a plant or an animal die

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

28 / 56

A nucleon is _________ times heavier than electron.

1832

1841

1836

1827

29 / 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-3

Option-2

Option-4

Option-1

30 / 56

The half-life of C-14 is ______

5202 Years

5730 Years

5700 Years

5720 Years

31 / 56

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

Atom

Molecule

Shell

Nucleus

32 / 56

Isotopes of an element have the same____________

Atomic Number

Chemical Properties

Atomic Mass Number

Colors

33 / 56

Which statement is correct about isotopes?

Protium, deuterium and tritium are isotopes of hydrogen

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

Atoms of an element have same number of protons.

All of these

34 / 56

Tritium contains one proton, while protium and deuterium contains_________

One Protons

Two Protons

Three Protons

No Proton

35 / 56

Radium-226 has a half-life of _____________

1820 years

1600 years

1920 years

1620 years

36 / 56

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

Radon Gas

Cosmic Rays

X-Rays

None of these

37 / 56

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

1-130

1-131

1-129

1-132

38 / 56

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

Smaller

Equal

Greater

Anyone of these

39 / 56

3

6

8

10

40 / 56

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

Atomic Number

none of these

Atomic mass number

Isotope number

41 / 56

The atomic number is represented by_______

Z

None of these

A

N

42 / 56

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

Co-60

C-14

I-131

P-32

43 / 56

____________ are collectively called nucleons.

Protons and Neutrons in Nucleus

Protons in nucleus

neutrons in nucleus

electrons in shell

44 / 56

Nuclear fission was first observed in 1939 by__________

Otto Han and Curie

First and Curie

Otto Hahn and Rutherford

Otto Hahn and Frits Strassman

45 / 56

Which compound is used for diagnosis of brain tumor?

hydrogen-3

Neon-152

iodine-131

Phosphorus-32

46 / 56

Hazards of radiation for humans are_____________

Blindness

Sterility

All Given

Leukemia

47 / 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-2

Option-4

Option-1

48 / 56

Half-life of   (60-27)Co is _________

30 years

50 years

20 years

40 years

49 / 56

The number of neutrons in a nucleus is represented by_______

None of these

N

Z

A

50 / 56

The total number of nucleons in a nucleus is__________

Atomic number

Atomic Mass Number

Isotope number

none of these

51 / 56

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

Stale Nuclei Present

Unstable Nuclei Present

Proton Present

Electrons Present

52 / 56

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

Both Isotopes & Nuclide

Nuclide

Isotopes

None of these

53 / 56

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

Release Nuclear Energy

Release Chemical Energy

Absorb Chemical Energy

Absorb Nuclear Energy

54 / 56

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

C-14

P-32

I-131

Co-60

55 / 56

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

Marie Curie

Rutherford

Becquerel

Pierre

56 / 56

In each fission reaction energy released__________

255meV

210meV

299mV

200MeV

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