Here we will provide you the 50+ MCQ Questions of Dual Nature of Radiation and Matter for NEET-UG. Electric Charges and Fields is the chapter 11 in Class XII or Class 12 Physics NCERT Unit Dual Nature of Radiation and Matter NEET (conducted by NTA) is based on the NCERT book.
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Dual Nature of Radiation and Matter NEET MCQ
A beam of electrons is passed through a narrow slit and then falls on a screen. What pattern will be observed on the screen?
a) Interference pattern
b) Diffraction pattern
c) Both interference and diffraction patterns
d) No pattern will be observed
The energy of an electron in the first Bohr orbit of hydrogen atom is -13.6 eV. What will be the energy of the electron in the third Bohr orbit?
a) -1.51 eV
b) -3.40 eV
c) -6.04 eV
d) -9.62 eV
The wavelength of a photon is 1 nm. What is its momentum?
a) 6.6 x 10^-34 kg m/s
b) 6.6 x 10^-27 kg m/s
c) 6.6 x 10^-24 kg m/s
d) 6.6 x 10^-21 kg m/s
In a photoelectric effect experiment, if the stopping potential for a given metal surface is 1.5 V and the frequency of the incident light is doubled, what will be the new stopping potential?
a) 0.75 V
b) 1.5 V
c) 3.0 V
d) 6.0 V
A photon of energy 3.0 eV is incident on a metal surface with a work function of 2.0 eV. What is the maximum kinetic energy of the emitted photoelectrons?
a) 1.0 eV
b) 2.0 eV
c) 3.0 eV
d) 5.0 eV
An electron moving with a speed of 10^6 m/s has a de Broglie wavelength of 1 nm. What will be the de Broglie wavelength of an electron moving with a speed of 5 x 10^6 m/s?
a) 0.2 nm
b) 0.5 nm
c) 1.0 nm
d) 2.0 nm
In an experiment to determine the Planck’s constant using a photoelectric effect setup, if the stopping potential for a given metal surface is 1.0 V and the frequency of the incident light is 5.0 x 10^14 Hz, what is the value of the Planck’s constant?
a) 4.0 x 10^-15 J s
b) 6.6 x 10^-34 J s
c) 6.6 x 10^-16 J s
d) 4.0 x 10^-34 J s
The maximum kinetic energy of an emitted photoelectron in a photoelectric effect experiment depends on:
a) The frequency of the incident light
b) The intensity of the incident light
c) The work function of the metal surface
d) Both the frequency of the incident light and the work function of the metal surface
The work function of a metal is 4.0 eV. What is the maximum kinetic energy of the emitted photoelectrons if the incident light has a wavelength of 200 nm?
a) 3.09 eV
b) 4.09 eV
c) 5.09 eV
d) 6.09 eV
In a Davisson-Germer experiment, an electron beam is incident on a nickel crystal. What is the angle between the incident beam and the normal to the crystal surface for the first-order maximum in the diffraction pattern?
a) 45 degrees
b) 60 degrees
c) 90 degrees
d) 120 degrees
In a photoelectric effect experiment, the incident light is replaced by X-rays. What effect will this have on the maximum kinetic energy of the emitted photoelectrons?
a) It will decrease
b) It will increase
c) It will remain the same
d) It depends on the metal used
Which of the following is not a characteristic of the wave nature of matter?
a) Diffraction
b) Interference
c) Polarization
d) Reflection
The de Broglie wavelength of an electron is 1 nm. What is its kinetic energy?
a) 1 eV
b) 6 eV
c) 12 eV
d) 24 eV
In a photoelectric effect experiment, the intensity of the incident light is doubled. What effect will this have on the number of photoelectrons emitted?
a) It will double
b) It will remain the same
c) It will decrease
d) It depends on the metal used
In a Davisson-Germer experiment, the electron beam is accelerated through a potential difference of 50 V before being incident on the nickel crystal. What is the de Broglie wavelength of the electrons?
a) 0.1 nm
b) 0.2 nm
c) 0.5 nm
d) 1.0 nm
What is the maximum number of electrons that can be emitted from a metal surface if it is illuminated with monochromatic light of frequency 5.0 x 10^15 Hz and intensity 1.0 W/m^2, assuming that the work function of the metal is 4.0 eV?
a) 1.24 x 10^14 electrons/s
b) 6.21 x 10^14 electrons/s
c) 1.24 x 10^15 electrons/s
d) 6.21 x 10^15 electrons/s
Which of the following phenomena cannot be explained by classical physics?
a) Photoelectric effect
b) Compton scattering
c) Diffraction of X-rays by crystals
d) All of the above
Which of the following statements is true regarding the nature of a photon?
a) It has both particle-like and wave-like properties
b) It only exhibits particle-like properties
c) It only exhibits wave-like properties
d) None of the above
In a photoelectric effect experiment, the stopping potential for a given metal surface is found to be 2.0 V when the incident light has a frequency of 6.0 x 10^14 Hz. What will be the stopping potential when the frequency of the incident light is doubled?
a) 1.0 V
b) 2.0 V
c) 4.0 V
d) 8.0 V
In a Davisson-Germer experiment, the wavelength of the incident electrons is doubled. What effect will this have on the diffraction pattern?
a) It will shift the pattern to the left
b) It will shift the pattern to the right
c) It will cause the pattern to become more spread out
d) It will cause the pattern to become more concentrated
Which of the following is not a characteristic of the particle nature of matter?
a) Diffraction
b) Interference
c) Mass
d) Momentum
In a photoelectric effect experiment, the work function of a metal is 3.0 eV. What is the maximum kinetic energy of the emitted photoelectrons if the incident light has a frequency of 2.0 x 10^15 Hz?
a) 0.2 eV
b) 1.5 eV
c) 3.0 eV
d) 5.0 eV
Which of the following phenomena is not an example of wave-particle duality?
a) Photoelectric effect
b) Compton scattering
c) Electron diffraction
d) Atomic spectra
In a photoelectric effect experiment, the maximum kinetic energy of the emitted photoelectrons is found to be 3.0 eV when the incident light has a frequency of 1.0 x 10^15 Hz. What will be the maximum kinetic energy of the emitted photoelectrons when the frequency of the incident light is doubled?
a) 1.5 eV
b) 3.0 eV
c) 4.5 eV
d) 6.0 eV
What is the de Broglie wavelength of an electron with a kinetic energy of 10 eV?
a) 0.1 nm
b) 0.5 nm
c) 1.0 nm
d) 5.0 nm
In a Davisson-Germer experiment, an electron beam is incident on a crystal at an angle of 30 degrees to the normal to the crystal surface. What is the angle between the first-order maximum and the normal to the crystal surface?
a) 15 degrees
b) 30 degrees
c) 45 degrees
d) 60 degrees
In an experiment to study the photoelectric effect, the frequency of the incident light is gradually increased. Which of the following will not increase?
a) The number of photoelectrons emitted per second
b) The maximum kinetic energy of the emitted photoelectrons
c) The stopping potential required to prevent the emission of photoelectrons
d) The work function of the metal surface
Which of the following statements is true regarding the Compton effect?
a) It occurs when X-rays are scattered by a stationary electron
b) It involves the transfer of momentum from a photon to an electron
c) The wavelength of the scattered photon is shorter than that of the incident photon
d) All of the above
Which of the following is not a characteristic of the wave nature of matter?
a) Interference
b) Diffraction
c) Mass
d) Wavelength
In a Davisson-Germer experiment, an electron beam is incident on a crystal at an angle of 45 degrees to the normal to the crystal surface. What is the angle between the first-order maximum and the normal to the crystal surface?
a) 15 degrees
b) 30 degrees
c) 45 degrees
d) 60 degrees
Which of the following statements is true regarding the nature of photons?
a) They have a definite position and momentum at all times
b) They only exhibit wave-like properties
c) They only exhibit particle-like properties
d) They can only be created or destroyed in pairs
In a photoelectric effect experiment, the maximum kinetic energy of the emitted photoelectrons is found to be 4.0 eV when the incident light has a frequency of 1.0 x 10^15 Hz. What will be the maximum kinetic energy of the emitted photoelectrons when the frequency of the incident light is doubled?
a) 4.0 eV
b) 6.0 eV
c) 8.0 eV
d) 16.0 eV
What is the de Broglie wavelength of a proton with a momentum of 1.0 x 10^-23 kg m/s?
a) 1.0 x 10^-30 m
b) 1.0 x 10^-25 m
c) 1.0 x 10^-20 m
d) 1.0 x 10^-15 m
Which of the following statements is true regarding the nature of matter waves?
a) They exhibit both wave-like and particle-like properties
b) They can be created or destroyed in pairs
c) They only exist within the nucleus of an atom
d) They do not interact with other matter waves
We hope there NEET MCQ of Class 12 Dual Nature of Radiation and Matter will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
