JEE Mains Physics 2002-2019 Solved Video Solutions
Which of the following processes represent a y decay ?
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Sep
Which of the following processes represent a y decay ? Which of the following processes represent a y decay ? September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 Solved Video Solutions ,
The intensity of X-rays from a coolidge tube is plotted against wavelength λ as shown in the figure. The minimum wavelength found is λc and the wavelength of the Kα line is λk. As the accelerating voltage is increased
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Sep
The intensity of X-rays from a coolidge tube is plotted against wavelength λ as shown in the figure. The minimum wavelength found is λc and the wavelength of the Kα line is λk. As the accelerating voltage is increased Beta rays emitted by a radioactive material are. September 15, 2021 Category: Chapter 18 - Atoms [...]
A hydrogen atom and Li^2+ ion are both in the second excited state. If lH and lLi are their respective electronic moments, and EH and ELi their respective energies, then
15
Sep
A hydrogen atom and Li^2+ ion are both in the second excited state. If lH and lLi are their respective electronic moments, and EH and ELi their respective energies, then A hydrogen atom and Li^2+ ion are both in the second excited state. If lH and lLi are their respective electronic moments and EH and [...]
A radioactive sample consists of two distinct species having equal number of atoms initially. The mean life of one species is t and that of the other is 5t. The decay products in both cases are stable. A plot is made of the total number of radioactive nuclei as a function of time. Which of the following figure best represents the form of this plot ?
15
Sep
A radioactive sample consists of two distinct species having equal number of atoms initially. The mean life of one species is t and that of the other is 5t. The decay products in both cases are stable. A plot is made of the total number of radioactive nuclei as a function of time. Which of [...]
The transition from the state n=4 to n=3 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition
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Sep
The transition from the state n=4 to n=3 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition The transition from the state n=4 to n=3 in a hydrogen like atom results in ultraviolet radiation. Infrared radiation will be obtained in the transition September 15, 2021 Category: Chapter [...]
Two radioactive materials X1 and X2 have decay constants 10λ and λ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of X1 to that of X2 will be 1/e after a time
15
Sep
Two radioactive materials X1 and X2 have decay constants 10λ and λ respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of X1 to that of X2 will be 1/e after a time then the ratio of the number of nuclei of X1 to that of [...]
Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. K-shell electrons of tungsten have 72.5 keV energy. X-rays emitted by the tube contain only
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Sep
Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. K-shell electrons of tungsten have 72.5 keV energy. X-rays emitted by the tube contain only Electrons with energy 80 keV are incident on the tungsten target of an X-ray tube. K shell electrons of tungsten have -72.5 keV energy. X-rays [...]
Imagine an atom made up of a proton and a hypothetical particle of double the mass of the electron but having the same charge as the electron. Apply the Bohr atom model and consider all possible transitions of this hypothetical particle to the first excited level. The longest wavelength photon that will be emitted has wavelength λ (given in terms of Rydberg constant R for the hydrogen atom) equal to
15
Sep
Imagine an atom made up of a proton and a hypothetical particle of double the mass of the electron but having the same charge as the electron. Apply the Bohr atom model and consider all possible transitions of this hypothetical particle to the first excited level. The longest wavelength photon that will be emitted has [...]
An electron in a hydrogen atom makes a transition from an excited state to ground state. Which of the following statement is true ?
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Sep
An electron in a hydrogen atom makes a transition from an excited state to ground state. Which of the following statement is true ? An electron in a hydrogen atom makes a transition from an excited state to ground state. Which of the following statement is true ? September 15, 2021 Category: Chapter 18 - [...]
22Ne nucleus, after absorbing energy, decays into two α – particles and an unknown nucleus. The unknown nucleus is
15
Sep
22Ne nucleus, after absorbing energy, decays into two α – particles and an unknown nucleus. The unknown nucleus is 22Ne nucleus after absorbing energy decays into two α - particles and an unknown nucleus. The unknown nucleus is September 15, 2021 Category: Chapter 18 - Atoms and Nuclei , JEE Mains Physics 2002-2019 Solved Video [...]