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Aashish Rohilla
Subject: Physics
, asked on 22/2/18
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Answer
1
Aashish Rohilla
Subject: Physics
, asked on 21/2/18
draw the energy level diagram showing how the transition between energy level result in appearance of lyman series
Answer
2
Rupal Sahu
Subject: Physics
, asked on 20/2/18
Solve this:
17.
The short wavelength limit for the Lyman series of the hydrogen spectrum is
. Calculate the short wavelength limit for Balmer series of the hydrogen spectrum.
Answer
1
Tanaya
Subject: Physics
, asked on 19/2/18
Ques no. 21 part (ii)
Answer
1
Lavneesh Rajput
Subject: Physics
, asked on 19/2/18
Solve this:
Q). How would the ionisation energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge?
Answer
1
Ayushi Aggarwal
Subject: Physics
, asked on 18/2/18
Ques14:
14. The ground state energy of hydrogen atom is -13.6 eV.
(i) What is the kinetic energy of an electron in the 2
nd
exited state?
(ii) What is the potential energy of an electron in the 3
rd
excited state ?
(iii) If the electron jumps to the ground state from the 3
rd
excited state, calculate the wavelength of the photon emitted.
Answer
1
Sofiya Parihar
Subject: Physics
, asked on 17/2/18
9) A. 12. 5 eV electron became is used to excite a gaseous hydrogen atom at room temperatures. Determine the wavelengths and corresponding series of the lines emitted.
Answer
1
Vaibhav Garg
Subject: Physics
, asked on 10/2/18
Two moles of an ideal monoatomic gas are confined within a cylinder by a massless &frictionless spring loaded piston of cross-sectional area 4 x 10 − 3 m 2 . The spring is,initially in its relaxed state . Now the gas is heated by an electric heated, placed insidethe cylinder, for some time . During this time, the gas expands and does 50 J of work inmoving the piston through a distance 0.10 m . The temperature of the gas increases by50 K . Calculate the spring constant & the heat supplied by the heater .
Answer
1
Chaitanya Kapoor
Subject: Physics
, asked on 6/2/18
Solve asap
Q.7. The energy of an electron in an excited hydrogen atom is - 3.4 eV. Find the angular momentum of the electron.
Q.8. Wavelength of the second line of the balmer series in the H-atom spectrum is 486.1 nm. Calculate the wavelength of the first balmer line.
Answer
1
Shivam Sharma
Subject: Physics
, asked on 6/2/18
Solve this:
The kinetic energy of the electron orbiting in the first excited state of hydrogen atom is 3.4 eV. Determine the de-Broglie wavelength associated with it.
Foreign 2015
Answer
2
Shivam Sharma
Subject: Physics
, asked on 6/2/18
Using Rydberg's formula calculate the wavelength of spectral lines of the first members of the Lyman series and Balmer series.
Answer
1
Shivam Sharma
Subject: Physics
, asked on 5/2/18
Solve this:
Q). Using Bohr's postulates, obtain the expression for the total energy of the electron in the stationary states of the hydrogen atom. Hence, draw the energy level diagram showing how the line spectra corresponding to Balmer series occur due to transition between energy levels.
Answer
1
Shivam Sharma
Subject: Physics
, asked on 5/2/18
Solve this:
Q). Using Bohr's postulates for hydrogen atom show that the total energy (E) of the electron in the stationary states can be expressed as the sum of kinetic energy (K) and potential energy (U), where K = - 2 U. Hence, deduce the expression for the total energy in the nth energy level of hydrogen atom.
Answer
1
Sandra Saju
Subject: Physics
, asked on 3/2/18
Using Bohr's postulates, derive the ecpression for the frequency of radiation emitted when electron in hydrogen atom undergoes transition from higher energy state ( quantum number ni) to the lowest state, (nf). When electron in hydrogen atom jumps from energy state ni = 4 to nf=3,2,1, identify the spectral series to which the emission lines belong.
Answer
1
Sandra Saju
Subject: Physics
, asked on 3/2/18
Using Bohr's postulates, derive the expression for the orbital period of the electron moving in the nth orbit of hydrogen atom.
Answer
1
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What are you looking for?
17. The short wavelength limit for the Lyman series of the hydrogen spectrum is . Calculate the short wavelength limit for Balmer series of the hydrogen spectrum.
Q). How would the ionisation energy change when electron in hydrogen atom is replaced by a particle of mass 200 times that of the electron but having the same charge?
14. The ground state energy of hydrogen atom is -13.6 eV.
(i) What is the kinetic energy of an electron in the 2nd exited state?
(ii) What is the potential energy of an electron in the 3rd excited state ?
(iii) If the electron jumps to the ground state from the 3rd excited state, calculate the wavelength of the photon emitted.
Q.7. The energy of an electron in an excited hydrogen atom is - 3.4 eV. Find the angular momentum of the electron.
Q.8. Wavelength of the second line of the balmer series in the H-atom spectrum is 486.1 nm. Calculate the wavelength of the first balmer line.
The kinetic energy of the electron orbiting in the first excited state of hydrogen atom is 3.4 eV. Determine the de-Broglie wavelength associated with it.
Foreign 2015
Q). Using Bohr's postulates, obtain the expression for the total energy of the electron in the stationary states of the hydrogen atom. Hence, draw the energy level diagram showing how the line spectra corresponding to Balmer series occur due to transition between energy levels.
Q). Using Bohr's postulates for hydrogen atom show that the total energy (E) of the electron in the stationary states can be expressed as the sum of kinetic energy (K) and potential energy (U), where K = - 2 U. Hence, deduce the expression for the total energy in the nth energy level of hydrogen atom.