Calculate the wavelength of an electron | Class 11 Chemistry Chapter Structure of Atom, Structure of Atom NCERT Solutions

Question:

Calculate the wavelength of an electron moving with a velocity of 2.05 × 107 ms–1.

Answer:

V= 2.05 x107 (given)

According to de Broglie’s equation,

Where, λ = wavelength of moving particle

m = mass of particle (9.10939 x 10-31)

v = velocity of particle

h = Planck’s constant (6.62 x 10-34)

Substituting the values in the expression of λ:

Hence, the wavelength of the electron moving with a velocity of 2.05 × 107 ms–1 is 3.548 × 10–11 m.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Structure of Atom.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

Comments

  • Saityapriyo Brahma
  • 2019-10-03 18:57:01

Thank u


  • Saityapriyo Brahma
  • 2019-10-03 18:56:38

Thank u


  • Vikrant
  • 2019-08-03 18:34:34

Thank you so much sir


  • Amir
  • 2019-04-17 13:15:38

Thnk so much sir


  • Janhavi Mishra
  • 2019-04-02 17:00:58

Thanku so much sir


  • Janhavi
  • 2019-04-02 16:59:02

Thank you so much sir


  • Hemanand
  • 2019-03-20 20:17:06

Thanks for the answer


  • Pelumi
  • 2019-01-30 00:58:57

Good Job


  • Majid
  • 2018-09-04 18:32:05

Thanks


  • Hima
  • 2018-08-19 19:24:16

Thanks a lot sir Helped a lot to me


Comment(s) on this Question

Welcome to the NCERT Solutions for Class 11 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 20: Calculate the wavelength of an electron moving with a velocity of 2.05 × 107 ms–1.....