# Derivation Of Schrodinger Wave Equation

Schrodinger Equation is a mathematical expression which describes the change of a physical quantity over time in which the quantum effects like wave-particle duality are significant. The Schrodinger Equation has two forms the time-dependent Schrodinger Equation and the time-independent Schrodinger Equation. The time-dependent Schrodinger Wave Equation derivation is provided here so that students can learn the concept more effectively.

Questions related to the derivation of Schrodinger Wave Equation is one of the most commonly asked questions in board exams and various competitive exams. The derivation of Schrodinger Wave Equation is given below in such a way that students understand the concept in an interesting and easy manner.

## Schrodinger Wave Equation Derivation (Time-Dependent)

Considering a complex plane wave:

Now the Hamiltonian of a system is

Where ‘V’ is the potential energy and ‘T’ is the kinetic energy. As we already know that ‘H’ is the total energy, we can rewrite the equation as:

Now taking the derivatives,

We know that,

where ‘λ’ is the wavelength and ‘k’ is the wavenumber.

We have

Therefore,

Now multiplying Ψ (x, t) to the Hamiltonian we get,

The above expression can be written as:

We already know that the energy wave of matter wave is written as

So we can say that

Now combining the right parts, we can get the Schrodinger Wave Equation.

This was the Derivation Of Schrodinger Wave Equation (time-dependent). Students must learn all the steps of Schrodinger Wave Equation derivation to score good marks in their examination. Stay tuned with BYJU’S and learn various other derivation of physics formulas.

#### Practise This Question

The ratio of the forces between two small spheres with constant charge (a) in air (b) in a medium of dielectric constant K is