Question Answers
Sahay Sir > Question Answers
The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. Find the smallest wavelength in the infrared region of the hydrogen spectrum (t0 the nearest integer in nm).
16
Oct
The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. Find the smallest wavelength in the infrared region of the hydrogen spectrum (t0 the nearest integer in nm). The largest wavelength in the ultraviolet region of the hydrogen spectrum is 122 nm. Find the smallest wavelength in the infrared region of [...]
Find the quantum number ‘n’ corresponding to exciting state of He+ ion if on transition to the ground state that ion emits two photons in succession with wavelength 1026.7 A and 304 A.
16
Oct
Find the quantum number ‘n’ corresponding to exciting state of He+ ion if on transition to the ground state that ion emits two photons in succession with wavelength 1026.7 A and 304 A. Find the quantum number 'n' corresponding to exciting state of He+ ion if on transition to the ground state that ion emits [...]
An electron in hydrogen atom jumps from n1 state to n2 state, where n1 and n2 represent the quantum number of two states. The time period of revolution of electron in initial state is 8 times
16
Oct
An electron in hydrogen atom jumps from n1 state to n2 state, where n1 and n2 represent the quantum number of two states. The time period of revolution of electron in initial state is 8 times An electron in hydrogen atom jumps from n1 state to n2 state where n1 and n2 represent the quantum [...]
The average lifetime for the n = 3 excited state of a hydrogen-like atom is 4.8 * 10^-8 s and that for the n = 2 state is 12.8 * 10^-8 s. The ratio of the average number of revolutions made
16
Oct
The average lifetime for the n = 3 excited state of a hydrogen-like atom is 4.8 * 10^-8 s and that for the n = 2 state is 12.8 * 10^-8 s. The ratio of the average number of revolutions made The average lifetime for the n = 3 excited state of a hydrogen-like atom [...]
A Bohr hydrogen atom undergoes a transition n = 5 to n = 4 and emits a photon of frequency f. Frequency of circular motion of electron in n = 4 orbit is f4. The ratio ff4 is found
16
Oct
A Bohr hydrogen atom undergoes a transition n = 5 to n = 4 and emits a photon of frequency f. Frequency of circular motion of electron in n = 4 orbit is f4. The ratio ff4 is found A Bohr hydrogen atom undergoes a transition n = 5 to n = 4 and emits [...]
In the spectrum of singly ionized helium, the wavelength of a line observed is almost the same as the first line of Balmer series of hydrogen. It is due to transition of electron from n1 = 6
16
Oct
In the spectrum of singly ionized helium, the wavelength of a line observed is almost the same as the first line of Balmer series of hydrogen. It is due to transition of electron from n1 = 6 In the spectrum of singly ionized helium the wavelength of a line observed is almost the same as [...]
Heat at the rate of 200 W is produced in an X-ray tube operation at 20 KV. Find the current in the circuit. Assume that only a small fraction of the kinetic energy of electrons is converted into X-rays.
16
Oct
Heat at the rate of 200 W is produced in an X-ray tube operation at 20 KV. Find the current in the circuit. Assume that only a small fraction of the kinetic energy of electrons is converted into X-rays. match the following The spectral lines of hydrogen-like atom fall within the wavelength range from 950 [...]
The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number Z) is the same as the shortest wavelength of the Balmer series of hydrogen atom. Find the value of Z.
16
Oct
The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number Z) is the same as the shortest wavelength of the Balmer series of hydrogen atom. Find the value of Z. The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number Z) is the same as the shortest wavelength of [...]
An electron in nth excited state in a hydrogen atom comes down to first excited state by emitting ten different wavelengths. Find value of n ( an integer ) .
16
Oct
An electron in nth excited state in a hydrogen atom comes down to first excited state by emitting ten different wavelengths. Find value of n ( an integer ) . An electron in nth excited state in a hydrogen atom comes down to first excited state by emitting ten different wavelengths. Find value of n [...]
An atom of atomic number Z = 11 emits K alpha wavelength which is lemda. Find the atomic number for an atom that emits K alpha radiation with wavelength 4 lemda (an integer).
16
Oct
An atom of atomic number Z = 11 emits K alpha wavelength which is lemda. Find the atomic number for an atom that emits K alpha radiation with wavelength 4 lemda (an integer). An atom of atomic number Z = 11 emits K alpha wavelength which is lemda. Find the atomic number for an atom [...]