Revisal Problems (Past 13 Years) JEE Advanced (Structure Of Atom) - JEE MCQ
29 Questions MCQ Test - Revisal Problems (Past 13 Years) JEE Advanced (Structure Of Atom)
Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE option is correct.
Q. Energy for 7.25 x 1015 photons of 5,37 x 1014 s-1 frequency in Einstein unit is
What is the minimum amount of time required to measure the kinetic energy of an electron with a speed of (100 ± 1)ms-1
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When a certain metal was irradiated with light of frequency 1.6 x 1016 Hz, the photoelectrons emitted had twice the kinetic energy as did photoelectrons emitted when the same metal was irradiated with light of frequency 1.0 x 1016 Hz. Thus, threshold frequency for the metal is
Consider the following dissociation of O2 (dissociation energy 498 kJ mol -1)
is more energetic than normal oxygen atom (O) by 1.967 eV. Thus, maximum wavelength for photochemical dissociation is
Which of the following pairs of orbitals have electron density along the axis?
The normalised wave function of 1s orbital is 
and the radial distribution function
For any axis (say x-axis) Schrodinger wave equation is represented as 
Its solution can be
If a 1.00 g body is travelling along the X-axis at 100 cm s -1 within 1 cm s -1, then uncertainty in its position is
Iodine molecule dissociates into atoms after absorbing light of 
. If one quantum of radiation is absorbed by each molecule, kinetic energy of each iodine atom is (Bond energy of l2 = 240kJ mol-1)
Quantum numbers of the electrons are give
How many electrons in an atom may have these quantum numbers?
Direction (Q. Nos. 11-13) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.
Q.
Statement I : On heating a metal for a longer time, radiations become white and then blue as the temperature increases.
Statement II : Radiations emitted go from a lower frequency to higher frequency as the temperature increases.
Statement I : Black body is an ideal body that emits and absorbs radiations of all frequencies.
Statement II : The frequency of radiations emitted by a body goes from a lower frequency to higher frequency with an increase in temperature.
Statement I : Electrons are negatively charged.
Statement II : The application of electric and magnetic field deflected the rays in the discharge tube towards the positive plate.
Direction (Q. Nos. 14-16) This section contains 3 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
Q. Spectral series of H-atom given 
depending on the types of transition. Which is/are correct matchings?
Velocity of the electron in third orbit of Li2+ is equal to velocity of the electron in
If the quantum num ber l could have the value of n also the
Direction (Q. Nos. 17-22) This section contains 3 paragraphs, each describing theory, experiments, data etc. Six questions related to the paragraphs have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d)
Passage I
The ionisation energy of hydrogen atom is 13.6 eV and the first ionisation energy of helium is 24.6 eV.
Q. What is the first ionisation energy of He+ (isoelectronic of H-atom)?
Passage I
The ionisation energy of hydrogen atom is 13.6 eV and the first ionisation energy of helium is 24.6 eV.
Q. What is the enthalpy change of the following process
Passage II
The position and momentum of electron of energy 0.5 keV are simultaneously determined. Its position is located within 0.2 nm
Q. Uncertainty in momentum is
Passage II
The position and momentum of electron of energy 0.5 keV are simultaneously determined. Its position is located within 0.2 nm
Q. Percentage uncertainty in momentum is
Passage III
Yellow lamp of 100 W emits radiations of wavelength 560 nm.
Q. Number of photons emitted by this lamp in 10 s is
Passage III
Yellow lamp of 100 W emits radiations of wavelength 560 nm.
Q. Time taken to produce 1 mole of the photons by this lamp is
Direction (Q. No. 23-27) This section contains 5 question. When worked out will result in an integer from 0 fo 9 (both inclusive).
Q. What is the maximum number of emission lines when the excited electron of a H-atom in n = 4 drops to the ground state?
Ionisation energy of H-atom in the ground state is 25 times the ionisation energy when it is in nth state. What is value of n?
Emission transitions in the Paschen series end at orbit n = 3 and start from orbit n and can be represented as
Calculate value of n if, the transition is observed at 1285 nm.
The atomic mass of He and Ne are 4 and 20 amu, respectively. The value of the de-Broglie wavelength of He gas at -73°C is 'rri times that of the de-Broglie wavelength of Ne at 727°C.m i s ......
[JEE Advanced 2013]
The value of the de-Broglie wavelength of He gas at 100 K is 5 times that of the de-Broglie wavelength gas X, at 1250 K. What is atomic mass of X?
Direction (Q. Nos. 28 and 29) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.
Match the name of units given in Column I with their relation (in terms of physical constants) given in Column II.
Match the species in Column I with their related properties in Column II.
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