HSC Science (General) 12th Board ExamMaharashtra State Board
Share

Books Shortlist

# Calculate the Radius of Second Bohr Orbit in Hydrogen Atom from the Given Data - HSC Science (General) 12th Board Exam - Physics

#### Question

Calculate the radius of second Bohr orbit in hydrogen atom from the given data.

Mass of electron = 9.1 x 10-31kg

Charge on the electron = 1.6 x 10-19 C

Planck’s constant = 6.63 x 10-34 J-s.

Permittivity of free space = 8.85 x 10-12 C2/Nm2

#### Solution

r_n=((h^2epsilon_0)/(pime^2))n^2

:.r_2=((h^2epsilon_0)/(pime^2))(2)^2

r_2=((6.63xx10^(-34))^2xx8.85xx10^(-12)xx(2)^2)/(3.14xx9.1xx10^(-31)xx(1.6xx10^(-19))^2)

=(43.96xx10(-68)xx8.85xx10^(-12)xx4)/(3.14xx9.1xx10^(-31)xx2.56xx10^(-38))

=2.127x10-10m

=2.127 A°

Is there an error in this question or solution?

#### APPEARS IN

2013-2014 (March) (with solutions)
Question 6.2 | 3.00 marks

#### Video TutorialsVIEW ALL [2]

Solution Calculate the Radius of Second Bohr Orbit in Hydrogen Atom from the Given Data Concept: Bohr'S Model for Hydrogen Atom.
S