De Broglie Wave Quiz: Physics Test!

6 Questions | By Derrickmcneill | Updated: Mar 22, 2022 | Attempts: 1977

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De Broglie Wave Quiz: Physics Test! - Quiz

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1.

Complete the following statement: According to the de Broglie relation, the wavelength of a "matter" wave is inversely proportional to
- A.
  
  Planck's constant.
- B.
  
  The mass of the particle.
- C.
  
  The momentum of the particle.
- D.
  
  The frequency of the wave.
- E.
  
  The speed of the particle.
2.

What is the de Broglie wavelength of an electron (m = 9.11 ´ 10^-³¹ kg) in a 5.0 ´ 10³-volt X-ray tube?
- A.
  
  0.007 nm
- B.
  
  0.014 nm
- C.
  
  0.017 nm
- D.
  
  0.028 nm
- E.
  
  0.034 nm
3.

Determine the de Broglie wavelength of a neutron (m = 1.67 ´ 10^-²⁷ kg) which has a speed of 5.0 m/s.
- A.
  
  79 nm
- B.
  
  162 nm
- C.
  
  395 nm
- D.
  
  529 nm
- E.
  
  1975 nm
4.

The de Broglie wavelength of an electron (m = 9.11 ´ 10^-³¹ kg) is 1.2 ´ 10^-¹⁰ m. Determine the kinetic energy of the electron.
- A.
  
  1.5 x 10^-15 J
- B.
  
  1.6 x 10^-16 J
- C.
  
  1.7 x 10^-17 J
- D.
  
  1.8 x 10^-18 J
- E.
  
  1.9 x 10^-19 J
5.

What happens to the de Broglie wavelength of an electron if its momentum is doubled?
- A.
  
  The wavelength decreases by a factor of 4.
- B.
  
  The wavelength increases by a factor of 4.
- C.
  
  The wavelength increases by a factor of 3.
- D.
  
  The wavelength increases by a factor of 2.
- E.
  
  The wavelength decreases by a factor of 2.
6.

The Hubble Space Telescope has an orbital speed of 7.56 ´ 10³ m/s and a mass of 11,600 kg. What is the de Broglie wavelength of the telescope?
- A.
  
  8.77 x 10^7 m
- B.
  
  5.81 x 10^-26 m
- C.
  
  6.63 x 10^-34 m
- D.
  
  3.78 x 10^-40 m
- E.
  
  7.56 x 10^-42 m