A proton and an electron are both travelling at the same speed. What can we conclude about their de Broglie wavelengths?
Asked by | 11th Oct, 2013, 08:04: PM
Expert Answer:
Mass of an electron =9.1 x 10 -31 kg
Mass of a proton =1.67 x 10 ?27 kg
Now de Broglie wavelength is given as
Since speed(v) is same for both the particles ? is inversely proportional to mass.
Since mass of proton is more de Broglie wavelength of the proton will be shorter than that of the electron.
Hence option c is correct and not d.

Answered by Vaibhav Chavan | 14th Oct, 2013, 02:49: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change