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Examples of De Broglie’s Hypothesis Problems and Solutions – Louis de Broglie is a French scientist who put forward the theory that light can be viewed as a particle that emits a certain wavelength with an equation that became known as a certain wavelength based on the momentum of light or the momentum of a photon.

1 – 10 de Brouglie Wavelength Questions and Answers

1. Find the de Brouglie wavelength of a plate of mass 0.01 kg that has a speed of 10 m/s?

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2. What is the de Brouglie wavelength of a 0.05 eV(thermal) neutron?

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3. What is the energy of a proton with a wavelength of 0.5 fm?

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4. If we want to observe an object measuring , what is the minimum energy of the photons that can be used?

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5. Repeat problem 4 for electrons instead of photons?

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Also Read: 10+ Problems with Mass, Momentum, Work and Relativistic Energy [+Pembahasan]

6. Show that the de Brouglie wavelength of a particle is approximately the same as that of a photon of the same energy, when the energy of the particle is much greater than its rest energy.

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7. Determine the phase velocity of a wave corresponding to a de Brouglie wavelength of

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8. A neutron beam of 0.083 eV

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9. A person weighing 60 kg rides a motorcycle at a speed of 60 km/hour, the weight of the motorcycle is 100 kg. What is De Broglie’s wavelength?

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10. Calculate the deBroglie wavelength of four objects with the following data:

• A 1000 kg car is moving at 100 m/s (about 200 miles/h).
• A 10 g bullet is moving with a speed of 500 m/s.

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See also: Problems of Rotational Dynamics and Equilibrium of Rigid Objects [+Jawaban]

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