A hydrogen atom, initially in the ground state is excited by absorbing a photon of wavelength 980 
. The radius of the atom in the excited state, in terms of Bohr radius 
, will be: (hc = 12500 e 
)
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Energy of photon 
Energy of electron in nth orbit is given by
Electron will excite to n = 4
We know that ‘ R ’ 
Radius of atom will be 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
In a hydrogen like atom, when an electron jumps from the M-shell to the L-shell, the wavelength of …
A particle of mass m moves in a circular orbit in a central potential field . If Bohr ’ s quantiza…
Radiation coming from transitions to of hydrogen atoms fall on ions in n = 1 and n = 2 states. T…
Taking the wavelength of first Balmer line in hydrogen spectrum as 660 nm, the wavelength of the 2…
A ion is in its first excited state. Its ionization energy is:
In , electron in first Bohr orbit is excited to a level by a radiation of wavelength . When the i…