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Quiz on Quantum Physics

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

Planck's radiation formula is given by

a)
b)
c)
d)
2.

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

a)

Stopping potential

b)

threshold frequency

c)

work function

d)

maximum kinetic energy

3.

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

a)
b)
c)
d)
4.

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

a)

2 eV

b)

4 eV

c)

16 eV

d)

32 eV

5.
Which model of the atom said that electrons circle the nucleus in orbits of a fixed radius?
a)
Bohr model
b)
Quantum mechanical model
c)
Not true of either model
d)
Both Bohr and Quantum mechanical model
6.

Name the scientist who created an equation to treat the electron as a wave

a)

Planck

b)

Heisenberg

c)

de Broglie

d)

Schrodinger

7.

Who is responsible for the quantization of energy?

a)

Planck

b)

Einstein

c)

Compton

d)

de Broglie

e)

Heisenberg

8.

Why do we see colors when we look at neon signs?

a)

Electrons are jumping from an excited state to a normal state and giving off energy

b)

Electrons are jumping from a normal state to an excited state and absorbing energy

c)

Electrons are jumping from an excited state to a normal state and absorbing energy

d)

Electrons are jumping from a normal state to an excited state and giving off energy

9.

Each orbital can hold ____ electrons

a)

5

b)

4

c)

8

d)

2

10.

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

a)

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

b)

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

c)

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

d)

All the above