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ATOMIC PHYSICS FORMULAE: Atomic Physics is one of the easiest Chapters of JEE syllabus. So, XI std students, make thorough these formulae. Written after the request of Ishan.Maheswari. 1) De Broglie's Eqn.: (Wave particle duality) = h/mv 2) Plank's eqn. E= h =hc/ 3) Bohr's Conditions: i)mvr=nh/2 ii)E 2 -E 1 =h 4) Radius of nth orbit: r n = n 2 * 0.53 *10 -10 m 5) Energy of nth orbit: E n = -13.6/n 2 eV 1eV= 1.6 * 10 -19 J 6) Frequency of Spectral lines: -1 =R [n 1 -2 -n 2 -2 ] R=Rydberg's Constant = 1.094 * 10 -7 m -1 For Lyman, Balmer, Paschen, Brackett, Pfund Series, n 1 = 1,2,3,4,5. n 2 >n 1 7) Photo-electric Effect: h =h o + mv 2 /2 ,where, h o = W =Work function. o = Threshold (min.)freq. (Point out any mistakes and rate me if u find this useful)


ATOMIC PHYSICS FORMULAE:
Atomic Physics is one of the easiest Chapters of JEE syllabus. So, XI std students, make thorough these formulae. Written after the request of Ishan.Maheswari.
1) De Broglie's Eqn.:  (Wave particle duality)
 = h/mv
2)Plank's eqn.
E= h=hc/  
3)Bohr's Conditions:
i)mvr=nh/2
ii)E2-E1=h
4) Radius of nth orbit:
rn= n2 * 0.53 *10 -10 m
5) Energy of nth orbit:
En= -13.6/n2   eV         1eV= 1.6 * 10 -19 J
6)Frequency of Spectral lines:
 -1 =R [n1 -2 -n2 -2]   R=Rydberg's Constant = 1.094 * 10 -7 m -1
 
For Lyman, Balmer, Paschen, Brackett, Pfund Series, n1= 1,2,3,4,5. n2>n1
7) Photo-electric Effect:
h=ho + mv2/2 ,where, ho = W =Work function. o = Threshold (min.)freq.
(Point out any mistakes and rate me if u find this useful)


Grade:upto college level

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