LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
33.2k views
in Quantum Mechanical Model of Atom by (46.8k points)
closed by

Calculate the de Broglie wavelength of an electron moving with 1 % of the speed of light?

1 Answer

+1 vote
by (47.9k points)
selected by
 
Best answer

According to de Brogue equation, A = h/mv

Mass of electron = 9.1 x 10-31 kg; Planck’s constant 6.626 x 10-34 kg m2 s-1 

Velocity of electron = 1% of speed of light 

= 3.0 x 108 x 0.01 = 3 x 106 ms-1

Wavelength of electron (λ) = h/mv

= 2.43 x 10-10 m

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...