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Sangeetha Periasamy

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20 questions

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- 1. Multiple Choice30 seconds1 pt
De Broglie equation

relates the momentum of a mass to its wavelength

relates the energy of a mass to its wavelength

relates the frequency of a mass to its wavelength

relates the work function of a mass to its wavelength

- 2. Multiple Choice30 seconds1 pt
If waves can behave like particles, then particles can behave like a wave. This is the idea behind...

Quantization of Energy

Photoelectric Effect

Compton Effect

deBroglie Waves

Uncertainty Principle

- 3. Multiple Choice30 seconds1 pt
The energy of a particle trapped inside an infinite deep potential well is 8 eV. If the width of the well is halved then it's energy becomes

2 eV

4 eV

16 eV

32 eV

- 4. Multiple Choice30 seconds1 pt
Name the scientist who created an equation to treat the electron as a wave

Planck

Heisenberg

de Broglie

Schrodinger

- 5. Multiple Choice30 seconds1 pt
The SI unit of frequency is the __________.

meter

second

hertz

meter per second

- 6. Multiple Choice30 seconds1 pt
If a proton and an electron have same energy, then which one is correct?

- 7. Multiple Choice30 seconds1 pt
The normalized wave function must have ________ norm

Infinite

Zero

Finite

Complex

- 8. Multiple Choice30 seconds1 pt
The square of the magnitude of the wave function is called_________

Current density

Probability density

Zero density

Volume density

- 9. Multiple Choice30 seconds1 pt
The operator ∇

^{2}is called _______ operatorHamiltonian

Laplacian

Poisson

Vector

- 10. Multiple Choice30 seconds1 pt
The function representing matter waves must be ________

Complex

Real

Zero

Infinity

- 11. Multiple Choice30 seconds1 pt
A ____ is a discrete, quantized bundle of energy

Photoelectric effect

Photon

Quantized

Proton

- 12. Multiple Choice30 seconds1 pt
find the correct applications of quantum mechanics.

Quantum mechanics is used to explain the concept of

photoelectric effect.

The atomic structure and the origin of spectral lines are explained by Bohr based on quantum concepts.

The phenomenon like Scattering of X-rays are

explained by Compton based on quantum ideas.

Based on quantum ideas, the problem

of specific heat of solids at low temperature

is explained successfully.

- 13. Multiple Choice30 seconds1 pt
Which one is correct Schrodinger time independent equation

[∇

^{2}ψ +__2m (E –V)__ψ]**/**ħ^{2}= 1[∇

^{2}ψ +__m (E –V)__ψ]**/**ħ^{2}= 0[∇

^{2}ψ +__2m (E –V)__ψ]**/**ħ^{2}= 0[∇

^{2}ψ +__2m (E –V)__ψ]**/**ħ = 0 - 14. Multiple Choice30 seconds1 pt
Which one is correct Schrodinger time dependent equation?

H = E

H = Eψ

Hψ = ψ

Hψ = Eψ

- 15. Multiple Choice30 seconds1 pt
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.

- 16. Multiple Choice30 seconds1 pt
Quantum mechanical operator, corresponding to physical quantity momentum, is

- 17. Multiple Choice30 seconds1 pt
The de-Broglie wavelength of an electron is 5 Angstrom. Then its momentum is

- 18. Multiple Choice30 seconds1 pt
An electron is moving freely with kinetic energy 10 eV. It's de-Broglie wavelength is

- 19. Multiple Choice30 seconds1 pt
The equation which links Energy to wavelength is...

$E=hf$

$E=\frac{hf}{\lambda}$

$E=\frac{hc}{\lambda}$

$c=f\lambda$

- 20. Multiple Choice30 seconds1 pt
What does the p stand for?

power

momentum

pressure

principle axis

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