Waves and Matter

A photon is

• a quantum number

• a positively charged particle

• electromagnetic energy

• an instrument for measuring light intensity

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Classical theory of radiation failed to explain photoelectric effect; however this phenomenon was explained on the basis of quantum theory by _____________

• Max Planck

• Einstein

• Compton

• Rutherford

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The rest mass of photon is _____________.

• zero

Why wave nature of matter is not apparent to our daily observations?

• bodies travel with small velocities

• wavelength of the waves associated with the pretty heavy mass is very large

• bodies travel with large velocities

• wavelength of the waves associated with the pretty heavy mass is very small

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NGSS.HS-PS4-3

If ‘h’ is Planck’s constant and the wavelength is 0.01 A°, find momentum?

• h

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Energy of the photon can be represented by

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The energy of a photon corresponding to the visible light of maximum wavelength is approximately _______________

• 7 eV

• 1 eV

• 3.2 eV

• 1.76 eV

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The momentum of a photon is p, the corresponding wavelength is ____________

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Which of the following statement is correct?

• No particle whether at rest or in motion is ever accompanied by matter waves

• Any particle in motion, whether charged or uncharged is accompanied by matter waves

• Only subatomic particles in motion are accompanied by matter waves

• Only a charged particles in motion are accompanied by matter waves

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NGSS.HS-PS4-3

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