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An electron in hydrogen-like atom makes a transition from nth orbit and emits radiation corresponding to Lyman series. If de-Broglie wavelength of electron in nth orbit is equal to the wavelength
11
Sep
An electron in hydrogen-like atom makes a transition from nth orbit and emits radiation corresponding to Lyman series. If de-Broglie wavelength of electron in nth orbit is equal to the wavelength An electron in hydrogen-like atom makes a transition from nth orbit and emits radiation corresponding to Lyman series. If de-Broglie wavelength of electron in [...]
When a beam of 10.6 eV photons of intensity 2.0 W m^-2 falls on a platinum surface of area 1.0 * 10^-4 m^2 and work function 5.6 eV, 0.53 % of the incident photons eject photoelectrons. Find the number of photoelectrons emitted per second
11
Sep
When a beam of 10.6 eV photons of intensity 2.0 W m^-2 falls on a platinum surface of area 1.0 * 10^-4 m^2 and work function 5.6 eV, 0.53 % of the incident photons eject photoelectrons. Find the number of photoelectrons emitted per second 0.53 % of the incident photons eject photoelectrons. Find the number [...]
Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing alpha particles. A maximum energy electron combines with an alpha particles to form a He ion, emitting
11
Sep
Photoelectrons are emitted when 400 nm radiation is incident on a surface of work function 1.9 eV. These photoelectrons pass through a region containing alpha particles. A maximum energy electron combines with an alpha particles to form a He ion, emitting An electron in a hydrogen-like atom is in an excited state. It has a [...]
A gas of hydrogen-like ion is prepared in such a way that the ions are only in the ground state and the first excited state. A monochromatic light of wavelength 1216 A is absorbed by the ions. The ions are lifted to higher excited states and emit
11
Sep
A gas of hydrogen-like ion is prepared in such a way that the ions are only in the ground state and the first excited state. A monochromatic light of wavelength 1216 A is absorbed by the ions. The ions are lifted to higher excited states and emit An electron in a hydrogen-like atom is in [...]
Assume that the de-Broglie wave associated with an electron can form a standing wave between the atoms arranged in a one-dimensional array with nodes at each of the atomic sites. It is found that one standing wave is formed if the distance between the atoms
11
Sep
Assume that the de-Broglie wave associated with an electron can form a standing wave between the atoms arranged in a one-dimensional array with nodes at each of the atomic sites. It is found that one standing wave is formed if the distance between the atoms An electron in a hydrogen-like atom is in an excited [...]
A 140 g ball, in horizontal flight with a speed v1 of 39.0 m/s. is struck by a bat. After leaving the bat, the ball travel in the opposite direction with speed v2=39.0 m/s. If the impact time Δt for the ball-bat collision is 1.20 ms, what average net force acts on the ball
11
Sep
A 140 g ball, in horizontal flight with a speed v1 of 39.0 m/s. is struck by a bat. After leaving the bat, the ball travel in the opposite direction with speed v2=39.0 m/s. If the impact time Δt for the ball-bat collision is 1.20 ms, what average net force acts on the ball A [...]
An object of mass 10 kg moves at a constant speed of 10m/s. A constant force that acts for 4 sec on the object gives it a speed of 2m/s in opposite direction. The force acting on the object is:
11
Sep
An object of mass 10 kg moves at a constant speed of 10m/s. A constant force that acts for 4 sec on the object gives it a speed of 2m/s in opposite direction. The force acting on the object is: An object of mass 10 kg moves at a constant speed of 10m/s. A constant [...]
An electron in a hydrogen-like atom is in an excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy, and (b) the de-Broglie wavelength of the electron.
11
Sep
An electron in a hydrogen-like atom is in an excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic energy, and (b) the de-Broglie wavelength of the electron. An electron in a hydrogen-like atom is in an excited state. It has a total energy of -3.4 eV. Calculate (a) the kinetic [...]
An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in a circular orbit of radius R (see figure). (a) Obtain an expression for the orbital magnetic dipole moment
11
Sep
An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in a circular orbit of radius R (see figure). (a) Obtain an expression for the orbital magnetic dipole moment An electron in the ground state of hydrogen atom is revolving in anticlockwise direction in a circular orbit of radius R (see [...]
An electron of energy 20 eV collides with a hydrogen atom in the ground state. As a result of the collision, the atom is excited to a higher energy state and the electron is scattered with reduced velocity.
11
Sep
An electron of energy 20 eV collides with a hydrogen atom in the ground state. As a result of the collision, the atom is excited to a higher energy state and the electron is scattered with reduced velocity. An electron of energy 20 eV collides with a hydrogen atom in the ground state. As a [...]