Home
Class 12
PHYSICS
Using Balmer empirical formula , obtain ...

Using Balmer empirical formula , obtain the wavelengths of `H_(alpha),H_(beta),H_(gamma),........H_(oo)`

Text Solution

Verified by Experts

Balmer empirical formula is given by `(1)/(lamda)=R(1/2^(2)-1/n^(2))`
For `H_(alpha)` line , put `n=3,1/lamda_(alpha)=R(5/36) " where "R=1.097xx10^(7)m^(-1)` this gives `lamda_(alpha)=656.3mm`
For `H_(alpha)` line , put `n=4,1/lamda_(beta)=R(3/16)` , this gives `H_(beta) "line " lamda_(beta)= 486.1nm`
similarly for `lamda_(gamma), "put " n = 5,H_(gamma)=lamda_(gamma)=434.1nm`
for `lamda_(delta), "put " n = 6,H_(delta)=lamda_(delta)=410.2nm`
for `lamda_(oo),` called series limit , put `n=oo,lamda_(oo) = 364.6nm`
Promotional Banner

Topper's Solved these Questions

  • ATOMS

    SUBHASH PUBLICATION|Exercise NUMERICALS WITH SOLUTIONS|13 Videos
  • ATOMS

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS WITH ANSWERS|8 Videos
  • ANNUAL EXAMINATION QUESTION PAPER (WITH ANSWER) MARCH 2018

    SUBHASH PUBLICATION|Exercise Part-C|11 Videos
  • COMMUNICATION SYSTEMS

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS WITH ANSWERS|4 Videos

Similar Questions

Explore conceptually related problems

C_(n)H_(2n) is the general formula of :

A=2pi r (r+h) . This formula can be used to find:

Using properties of determinants prove that : {:|( alpha , alpha ^(2) , beta +gamma ),( beta , beta ^(2) , gamma +alpha ),( gamma , gamma ^(2) ,alpha +beta ) |:} =(beta -gamma ) (gamma -alpha ) (alpha -beta ) (alpha +beta +gamma )

C_(n)H_(2n)O_(2) is the general formula of

Increasing order of carbon-carbon bond length for the following is : {:(C_(2)H_(4),C_(2)H_(2),C_(6)H_(6),C_(2)H_(6)),((A),"(B)",(C),(D)):}

Write the IUPAC names of (a) C_(2)H_(5)OCH_(3) (b) C_(6)H_(5)OC_(2)H_(5)

The wavelength of the first line of Balmer series of H-atom of 6561Å . The wavelength of the second line of the series is

Balance the Redox reaction using oxidation number method. SO_(2)+H_(2)StoS+H_(2)O