in 1931kronig &penny solved schrodinger eq. in a simple periodic potential . they assume that the potential energy of electron has the periodic array of reactangular wall & it is possible to get exact solution of schrondinger equ .
The circular flow refers to a simple economic model which describes the reciprocal circulation of income between the consumers and producers. Thanks
the principle of opposing government interference in economic affairs
The benefits-received principle justifies a regressive tax.
The monetary unit principle states that people can only record business transactions that can be expressed in terms of a currency. This principle is generally accepted among people.
principle of autonomy Self determination
A principle is a fundamental rule or belief that guides behavior or decision-making, while a model is a simplified representation of a system or concept used to explain or predict outcomes. Principles are more abstract and broad, providing a foundation for actions, while models are more concrete and specific, serving as tools for analysis and understanding.
the principle of a role model is to be an inspiration to someone like you might look up to your mom but really being a good role model is making the right choices not everyone is a good role model but some are
The ego is considered to be governed by the reality principle in Freud's model of the personality. It operates based on the reality principle, which seeks to satisfy the id's desires in a realistic and socially appropriate manner.
A good model has two characteristics: Accuracy - the model acts like the reality it is trying to describe Strength - the model can tell you things you did not know before (what if?)
Start with a general principle or premise. Apply the principle to a specific case or situation. Draw a conclusion based on the application of the principle to the specific case. Assess the validity of the conclusion based on the initial premise.
Such principle of belief that earth is the centre of the solar system is geocentrism. The model is called a Geocentric model.
The id is considered to be governed by the pleasure principle in Freud's model of personality. It operates based on fulfilling basic needs and desires, seeking immediate gratification without concern for consequences.
that opposite electric charges attract that opposite electric charges attract
In prototyping the main principle is that the project is built quickly to demonstrate the customer who can give more inputs and feedbacks . Prototype model is excellent for gathering and refining requirements.
Heisenberg's uncertainty principle states that it is impossible to simultaneously know both the exact position and momentum of a particle. In contrast, the Bohr model of hydrogen assumes a well-defined orbit for electrons which violates this principle. This conflict led to the development of quantum mechanics, which describes the behavior of particles more accurately.
Principle of conservation of energy Principle of conservation of momentum Principle of relativity Principle of causality Principle of least action Principle of symmetry and invariance
Yes, the perfect cosmological principle is a key aspect of the oscillating universe theory. This principle suggests that the universe looks the same from any vantage point at any given point in time, which is a fundamental assumption for the oscillating universe model where the universe undergoes cycles of expansion and contraction.