Home
Class 12
PHYSICS
Find the longest wavelength present in t...

Find the longest wavelength present in the Balmer series of hydrogen.

Text Solution

Verified by Experts

The correct Answer is:
A
Longest wavelength means minimum energy.
`(DeltaE)_(min) = E_3 - E_2`
`=- (13.6)/(9)+ (13.6)/(4) = 1.9 eV`
`lambda(in Å)= (12375)/(1.9) = 6513`
or `lambda ~~ 651 nm.`
Promotional Banner

Topper's Solved these Questions

  • MODERN PHYSICS - 1

    DC PANDEY ENGLISH|Exercise Exercise 33.3|6 Videos

  • MODERN PHYSICS - 1

    DC PANDEY ENGLISH|Exercise Exercise 33.4|8 Videos

  • MODERN PHYSICS - 1

    DC PANDEY ENGLISH|Exercise Exercise 33.1|6 Videos

  • MODERN PHYSICS

    DC PANDEY ENGLISH|Exercise Integer Type Questions|17 Videos

  • MODERN PHYSICS - 2

    DC PANDEY ENGLISH|Exercise Level 2 Subjective|10 Videos

Similar Questions

Explore conceptually related problems

Calculate the wave number for the longest wavelength transition in the Balmer series of atomic hydrogen . ( R_(H) = 109677 cm^(-1)).

In terms of Rydberg constant R , the shortest wavelength in the Balmer series of the hydrogen , atom spestrum will have wavelength

Calculate the shortest wavelength in the Balmer series of hydrogen atom. In which region ( infrea-red, visible, ultraviolet) of hydrogen spectrum does this wavelength lie ?

Calculate the wave number for the shortest wavelength transition in the Balmer series of atomic hydrogen

Calculate the wavelength of the first line in the Balmer series of hydrogen spectrum

Calculate the wavelength of the first line in the Balmer series of hydrogen spectrum.

The line with smallest wavelength in the Balmer series in the hydrogen spectrum will have the frequency :-

The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number of Z ) is the same as the shortest wavelength of the Balmer series of hydrogen atom. The value of z is

The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number of Z ) is the same as the shortest wavelength of the Balmer series of hydrogen atom. The value of z is

The shortest wavelength of the Brackett series of a hydrogen-like atom (atomic number of Z ) is the same as the shortest wavelength of the Balmer series of hydrogen atom. The value of z is