The 10th Class Physics Chapter 18 MCQs with Answers: “Atomic and Nuclear Physics” delves into the fascinating realm of atoms and their nuclei, exploring the principles, phenomena, and applications of atomic and nuclear physics.
10th Class Physics Chapter 18 MCQs with Answers
The 10th Class Physics Chapter “Atomic and Nuclear Physics” delves into the fascinating realm of atoms and their nuclei, exploring the principles, phenomena, and applications of atomic and nuclear physics.
Prepare to embark on a captivating journey where we unravel the mysteries of the microscopic world and its significance in our understanding of matter and energy. We delve into the structure of atoms, learning about subatomic particles such as protons, neutrons, and electrons, and their role in determining the properties of different elements.
Our exploration extends to the concept of atomic models, understanding the development of models such as the Bohr model and the quantum mechanical model. We delve into the behavior of electrons in atoms and their role in the emission and absorption of light.
The chapter further unveils the significance of nuclear physics, exploring the structure and stability of atomic nuclei. We learn about nuclear reactions, radioactive decay, and the principles behind nuclear energy and its applications.
Through practical examples, case studies, and real-life applications, we enhance our understanding of atomic and nuclear physics. We sharpen our ability to analyze and interpret atomic and nuclear phenomena, calculate energy levels and decay rates, and understand the principles behind nuclear power generation and its impact on society.
Studying “Atomic and Nuclear Physics” in the 10th Class Physics curriculum nurtures critical thinking skills, analytical reasoning, and a deeper understanding of the fundamental building blocks of matter. It equips us with the tools to comprehend and appreciate the complexities of atoms and nuclei, their properties, and their applications in various fields. So let us embark on this enlightening journey, where we explore the captivating realm of atomic and nuclear physics, unraveling its secrets and expanding our understanding of the dynamic world of physics.
10th Class Physics Chapter 18 MCQs: Atomic and Nuclear Physics
(1) The temperature of the center of sun is;
(a) 20 million kelvin
(b) 2 million kelvin
(c) 24 million kelvin
(d) 29 million kelvin
(2) Mass energy equation and theory of relativity were given by:
(a) Newton
(b) Quantum
(c) Einstein
(d) Volta
(3) Nuclear fission was first observed in 1939 by:
(a) Otto Hahn and Fritz Strasslnan
(b) Otto Hahn and Curie
(c) Fritz and Curie
(d) Otto Hahn and Rutherford
(4) In each fission reaction energy is released;
(a) 210meV
(b) 299mV
(c) 200 MeV
(d) 255meV
(5) During fission of I kg of Uranium -235 energy released is;
(a) 67 x 1010j
(b) 65 x 108j
(c) 60 x 108j
(d) 66 x 109j
(6) Hazards of radiation for humans arc;
(a) Leukemia
(b) Sterility
(c) Blindness
(d) all given
(7) Half-life of 6027Co is
(a) 20 year
(b) 40 years
(c) 50 years
(d) 30 years
(8) Radioactive isotope is used in cancerous tumours and cells
(a) P -32
(b) I – 131
(c) C – 14
(d) Co – 60
(9) When a tree dies
(a) C -14
(b) P – 32
(c) I – 131
(d) Co – 60
(10) The half-life of C-14 is;
(a) 5720 years
(b) 5730 years
(c) 5700 years
(d) 5202 years
(11) The stable argon nuclei Ar – 40 half life?
(a) 2.4 x 108 year
(b) 2.9 x 104 year
(c) 2.5 x 109 year
(d) 2.4 x 1011 year
(12) In which simplest atom, the nucleus has only one proton?
(a) Helium
(b) Carbon
(c) Nitrogen
(d) Hydrogen
(13) In order to find the intensity of radiations, which device (s) is/are used:
(a) Film badge
(b) Dosimeter
(c) Radiometer
(d) Both a & b
(14) In nuclide 116X the number of protons are;
(a) 3
(b) 10
(c) 8
(d) 6
(15) Isotopes of an element have the same:
(a) chemical properties
(b) Atomic number
(c) Atomic mass
(d) colors
( 16) protium & deuterium contain
(a) two protons
(b) three protons
(c) one proton
(d) no proton
(17) who accidentally discovered that uranium salt crystals emit an invisible radiation that can darken a photographic plate;
(a) Becquerel
(b) Marie Curie
(c) Pierre
(d) Rutherford
(18) Transmutation is
(a) unstable nuclei change into stable nuclei
(b) spontaneous process
(c) a&b both
(d) nonspontaneous process
(19) Gamma rays are also called:
(a) photons
( b) electrons
(c) protons
(d) positrons
(20) Which have the greatest power of ionization as compared to others?
(a) ß-particles
(b) ~-particles
(c) 7-particles
(d) x-rays
(21) Penetrating power of 7 rays as compared to a rays and 13 rays is:
(a) Greater
(b) Sinaller
(c) Equal
(d) Anyone can be
(22) The phenomenon by which radiations split water into positive an(l negative ions is called;
(a) ionization
(b) penetration
(c) sublimation
(d) deflection
(23) The rate Of radioactive decay is proportional to the number of:
(a) stable nuclei present
(b) unstable nuclei present
(c) electrons present
(d) protons present
(24) Radium-226 has a half-life of:
(a) 1820 years
(b) 1920 years
(c) 1620 years
(d) 1600 years
(25) Stable nuclei have atomic number between:
(a) I – 82
(b) 2 – 89
(c) 2 – 88
(d) 2-85
(26) Elements are naturally unstable having atomic number greater than;
(a) 84
(b) 89
(c) 82
(d) 88
(27) When two light nuclei combine to form a heavier nucleus, this process is called;
(a) Nuclear fission
(b) Nuclear fusion
(c) bombardment
(d) disintegration
(28) Which are chemical compounds containing some quantity of radioisotope?
(a) Radioactive tracer
(b) Hard compounds
(c) High energy compounds
(d) Soft compounds
(29) Which compound readily accumulates in the thyroid gland and can be used for monitoring of thyroid functioning?
(a) I – 131
(b) I – 130
(c) I – 132
(d) I – 129
(30). Which compound is used to diagnose brain tumour
(a) Phosphorus – 32
(b) iodine – 131
(c) hydrogen – 3
(d) Neon – 152