Modern Physics Quiz for Fun & Quiz Competition Practice 1

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#1. The number of nucleons in the nucleus represent __________ of the nucleus.

#2. Which is the weakest interaction among the following forces in nature

#3. The graph of ln(R/R0) versus ln A is ________. (R= radius of a nucleas), A= its mass number

#4. Which of the following is/are electromagnetic wave(s)

#5. When a neutron is converted to a proton and an electron, another particle is released. What is that

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Moderen Physics Quiz Explanation is given below

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  1. Neutrons and protons are together called Nucleons.
    They reside inside the nucleus. They represent the mass
    number of a nucleus. The number of protons represents
    the atomic number of a nucleus.
  2. Gravitational force is the weakest interaction among
    the four fundamental forces in nature. Strong nuclear
    force is the strongest force among them as it is the
    reason the positively charged protons, which must be
    repelling each other in general, are held together tightly
    inside a nucleus.
  3. The graph is a straight line as the radius of a nucleus
    is constant for all nuclei, irrespective of their mass
    number.
  4. Gamma rays are electromagnetic waves of the
    shortest wavelength. It mainly arises from the radioactive
    disintegration of nuclei in an excited state to get to the
    ground state.
  5. An antineutrino is released during the process of
    transformation of a neutron into a proton and an electron.

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Morden Physics Quiz

  1. The number of nucleons in the nucleus represents
    __ of the nucleus.
    a. Atomic number
    b. Mass number ()
    c. Azimuthal quantum number
    d. Number of isotopes
  2. Which is the weakest interaction among the following
    forces in nature?
    a. Strong force
    b. Weak force
    c. Gravitational force()
    d. Electromagnetic force
  3. The graph of ln(R/R0

) versus ln A is __.
(R= radius of a nucleus), A= its mass number
a. an ellipse
b. a hyperbola
c. a parabola
d. a straight line()

  1. Which of the following is/are electromagnetic wave(s)?
    a. alpha rays
    b. negative beta rays
    c. gamma rays()
    d. positive beta rays
  2. When a neutron is converted to a proton and an
    electron, another particle is released. What is that ?
    a. neutrino
    b. antineutrino ()
    c. gluon
    d. positron
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