Practice Dual Nature Of Matter: De Broglie Hypothesis (5) - Dual Nature of Matter and Radiation

Practice: Dual Nature of Matter: de Broglie Hypothesis

Lesson 5Dual Nature of Matter and Radiation

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6 sample questions

Question 1.
What is the de Broglie hypothesis?
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Think about the nature of light.
Question 2.
Calculate the de Broglie wavelength of an electron with a momentum of 1.6 x 10^-24 kg m/s. Given Planck's constant is 6.626 x 10^-34 J·s.
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Use the formula λ = h/p.
3Question 3.
What does the de Broglie Hypothesis propose?
- That matter has only particle properties
- Both matter and light have wave-like properties
- Only light behaves as a wave
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Consider how light behaves.
4Question 4.
Is the de Broglie wavelength equation applicable to large objects?
- True
- False
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Think about the implications of large mass in the formula.
Question 5.
A neutron has a mass of 1.675 x 10^-27 kg and is moving at a speed of 1.0 x 10^6 m/s. Calculate its de Broglie wavelength.
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Use the de Broglie equation and remember to convert units if necessary.
Question 6.
Discuss what experimental evidence might be required to support the de Broglie hypothesis if it weren't already established.
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Consider the characteristics of light phenomena in your response.

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