Example 14.5: A student, weighing 45 kg,
is running with a speed of 8 km per hr on a
foot path 2 m wide. A small car, weighing
1200 kg, is moving with a speed of 60 km
per
hr on a 20 m wide road. Calculate their
de Broglie wavelengths.
Civen
Answers
Answered by
3
Step-by-step explanation:
Given A student, weighing 45 kg,is running with a speed of 8 km per hr on a foot path 2 m wide. A small car, weighing 1200 kg, is moving with a speed of 60 km per/ hr on a 20 m wide road. Calculate their de Broglie wavelengths.
- First in the case of student we have
- Given m = 45 kg, v = 8 km/ hr = 8 x 5/18
- = 20 / 9 m/s
- So de Broglie wavelength λ = h / mv
- = 6.626 x 10^-34 / 45 x 20/9
- = 6.626 x 10^-34 x 9 / 900
- = 6.626 x 10 ^-36 m
- Now in the case of car we have
- Given m = 1200 kg v = 60 km / hr = 60 x 5/18
- = 50 / 3 m/s
- So de Broglie wavelength λ = h / mv
- = 6.626 x 10^-34 / 1200 x 50/3
- = 6.626 x 10^-34 x 3 / 1200 x 50
- = 6.626 x 10^-34 / 2 x 10^4
- = 3.313 x 10^-38 m
Reference link will be
https://brainly.in/question/8438969
Answered by
0
this is the de broglie wavelength.
speed moving 16km\h 12k
Attachments:
Similar questions