# Quantum Physics Quiz for Fun & Quiz Competition Practice 2

Quantum Physics Quiz is here,

## Results

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### #1. Which of the following expressions represents momentum, where ℏ = reduced Planck's constant?

### #2. Stationary state corresponds to a state with ________ .

### #3. A stationary state is also called ______ .

### #4. IΨ> is called a ______ vector.

### #5. Uncertainty principle was given by _______ .

Explanation is given below

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## Quantum Physics Quiz Explanations

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- Momentum , p = h/λ

or, p = (h/2π).(2π/λ)

or, p = ħ k

Where k = wave vector - Stationary states are quantum states in

which all observables are independent of time.

They correspond to a state with a single definite

energy. - A stationary state is also called an energy

eigen state, energy eigen vector, energy Eigen

ket. - IΨ> is called a ket vector. <ΨI is called a bra

vector. They make to form a bra-ket. - German physicist Werner Heisenberg gave

uncertainty principle which states that we can’t

measure both position and momentum

simultaneously.

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Uploaded by Bhautik Kapadiya

## Quantum Mechanics Quiz and answers

- Which of the following expressions

represents momentum, where ħ = reduced

Plank’s constant?

a. ħw

b. ħk ()

c. ħf

d. ħc - Stationary state corresponds to a state with
.*__*

a. single definite energy ()

b. more than one energy states

c. quantum superposition of different energies

d. none of the above - A stationary state is also called
**__**.

a. energy eigen state

b. energy eigen ket

c. energy eigen vector

d. all of the above () - IΨ> is called a
**__**vector.

a. bra

b. ket ()

c. orthogonal

d. none of the above

- Uncertainty principle was given by
.*_*

a. Erwin Schrodinger

b. Wolfgang Pauli

c. Werner Guttenberg

d. None of the above ()

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