Refer to NEET Physics Dual Nature of Radiation and Matter MCQs Set A provided below. NEET Full Syllabus Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Physics with answers have been prepared as per the latest syllabus, NEET books and examination pattern suggested in Full Syllabus by NEET, NCERT and KVS. Multiple Choice Questions for Dual Nature of Radiation and Matter are an important part of exams for Full Syllabus Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Dual Nature of Radiation and Matter
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Dual Nature of Radiation and Matter in Full Syllabus. These MCQ questions with answers for Full Syllabus Physics will come in exams and help you to score good marks
Dual Nature of Radiation and Matter MCQ Questions Full Syllabus Physics with Answers
Question: A particle is dropped from a height H. The de-Broglie wavelength of the particle as a function of height is proportional to
a) H–1/2
b) H0
c) H1/2
d) H
Answer: H–1/2
Question: The wavelength of a photon needed to remove a proton from a nucleus which is bound to the nuclear with 1 MeV energy is nearly
a) 1.2 × 10–3 nm
b) 1.2 × 10 nm
c) 1.2 nm
d) 1.2 × 10–6 nm
Answer: 1.2 × 10–3 nm
Question: Consider a beam of electrons (each electron with energy E0) incident on a metal surface kept in an evacuated chamber. Then,
a) electrons can be emitted with any energy, with a maximum of E0
b) None of these
c) electrons can be emitted but all with an energy, E0
d) no electrons will be emitted as only photons can emit electrons
Answer: electrons can be emitted with any energy, with a maximum of E0
Question:
a) will be less than the earlier value
b) will be the same as the earlier value
c) None of these
d) will depend on the target
Answer: will be less than the earlier value
Question:
a)
b)
c)
d)
Answer:
Question:
a) remains constant
b) increases and decreases periodically
c) increases with time
d) None of these
Answer: remains constant
Question:
a)
b) None of these
c)
d)
Answer:
Question:
a)
b)
c) Both
d) None of these
Answer:
Question: When the energy of the incident radiation is increased by 20%, the kinetic energy of the photoelectrons emitted from a metal surface increased from 0.5 eV to 0.8 eV. The work function of the metal is :
a) 1.0 eV
b) 1.3 eV
c) 1.5 eV
d) 0.65 eV
Answer: 1.0 eV
More Questions.....................................
Question: A 15.0 eV photon collides with and ionizes a hydrogen atom. If the atom was originally in the ground state (ionization potential =13.6 eV), what is the kinetic energy of the ejected electron?
a) 1.4 eV
b) 13.6 eV
c) 28.6 eV
d) 15.0 eV
Answer: 1.4 eV
Question: Light of wavelength 500 nm is incident on a metal with work function 2.28 eV. The de Broglie wavelength of the emitted electron is
a)
b)
c)
d) None of these
Answer:
Question: Assertion : Photoelectric saturation current increases with mthe increase in frequency of incident light.
Reason : Energy of incident photons increases with increase in frequency and as a result photoelectric current increases.
a) Assertion is incorrect, reason is correct
b) Assertion is correct, reason is incorrect
c) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
d) Assertion is correct, reason is correct; reason is a correct explanation for assertion
Answer: Assertion is incorrect, reason is correct
Question: Assertion : In process of photoelectric emission, all emitted electrons do not have same kinetic energy.
Reason : If radiation falling on photosensitive surface of a metal consists of different wavelength then energy acquired by electrons absorbing photons of different wavelengths shall be different.
a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
c) Assertion is correct, reason is incorrect
d) Assertion is incorrect, reason is correct.
Answer: Assertion is correct, reason is correct; reason is a correct explanation for assertion.
Question: When 0.50 Å X-rays strike a material, the photoelectrons from the k shell are observed to move in a circle of radius 23 mm in a magnetic field of 2 × 10–2 tesla acting perpendicularly to the direction of emission of photoelectrons. What is the binding energy of k-shell electrons?
a) 6.2 keV
b) 2.9 keV
c) 5.5 keV
d) None of these
Answer: 6.2 keV
Question: An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is :
a)
b)
c)
d)
Answer:
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NEET Full Syllabus Physics Dual Nature of Radiation and Matter MCQs
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MCQs for Physics NEET Full Syllabus Dual Nature of Radiation and Matter
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Dual Nature of Radiation and Matter MCQs Physics NEET Full Syllabus
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Dual Nature of Radiation and Matter NEET Full Syllabus MCQs Physics
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NEET MCQs Physics Full Syllabus Dual Nature of Radiation and Matter
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