Quantum physics

Plank's radiation formula is given by

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Which of the following is correct related to black body radiation curve?

• Plank's formula could explain the radiation curve in all frequency range.

• Wien's formula for radiation energy distillation well explains the distribution of energy in high frequency range.

• Rayleigh-Jean's formula well matches with the radiation curve in low frequency range.

• All the above

As per Plank's hypothesis an oscillator can have only discrete energy values given by (see the image), where n= __________

• 1,2,3 .................

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• 0,1,2,3........

• All the above

The minimum energy required by a bound electron to be liberated from the metal when it is illuminated by light of suitable wavelength is called

• Stopping potential

• threshold frequency

• work function

• maximum kinetic energy

Einstein's photoelectric equation is

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This equation represents Schrodinger's

• time independent in 3-d for free particle.

• time independent in 3-d.

• time dependent in 1-d for free particle.

• time dependent in 1-d.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Dimension of 1-d probability density and that of 2-d wave function is __________ and _________ respectively.

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Quantum mechanical operator, corresponding to physical quantity momentum, is

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If a proton and an electron have same energy, then which one is correct?

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Tags

NGSS.HS-PS3-1

The de-Broglie wavelength of an electron is 5 Angstrom. Then its momentum is

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Tags

NGSS.HS-PS2-2