# Quantum Mechanics Quiz for Fun & Quiz Competition Practice

Quantum Mechanics Quiz is here,

## Results

### #5. To add up discrete quantities, we use _______ .

Explanation is given below

Play more Quiz

Participate in the biggest Physics quiz competition of 2020

## Quantum Mechanics Quiz Explanations

Subscribe to Physics Only Youtube channel

1. H Ψ = E Ψ, is the Schrödinger’s wave
equation. The left hand side is the
Hamiltonian, i.e., the total energy (kinetic
energy + potential energy).
And the right hand side is E, the total
energy. It shows the conservation of energy
principle.
2. Mass of proton is 1836 times that of
electron.
3. Ψ doesn’t have any physical significance
as it’s a complex number, so we take its
complex conjugate and multiply with it to get
probability density. Max Born proposed this,
also called Born Interpretation of quantum
mechanics.
4. <ΨI is a bra vector. And IΨ> is a ket
vector. They make up together to give
<ΨIΨ> , which complets to form a bra-ket.
5. We use summation for adding up discrete
quantities. However, we use integration

Subscribe to our channel Physics Only

## Quantum Physics Quiz and answers

1. Schrödinger’s wave equation is an
example of conservation of
a. angular momentum
b. linear momentum
c. charge
d. energy ()
2. If mass of proton is M and mass of
electron is m, then which of the following
relations is right?
a. M = 4m
b. M = 1836m ()
c. M = 2288m
d. M = m
3. IΨI^2 represents _ in quantum
mechanics.
a. probability
b. probability density ()
c. wave velocity
d. eigen vector
4. <ΨI is a __ vector.
a. ket
b. bra ()
c. eigen
d. none of the above
5. To add up discrete quantities, we use
_ .
a. summation ()
b. integration
c. differentiation
d. both b and c