Post on 10-Apr-2018
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Made by :
Ankit Sonkar (EC 3rd)
Arpit Agarwal (EC 3rd)
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What is Quantum Mechanics??/
Evolution
Role in daily life
Uncertainity principle
Application
Magical Effect
Difference between classical and quantummechanics.
Unsolved questions.
Our views.
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If Classical Physics describes the world to be
deterministic where the entire future course
is predecided, quantum physics puts up a
theory based on the assumption that world isprobabilistic where the events take place on
random chances.
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Einstein States:
According to the assumption to be
contemplated here, when a light ray is
spreading from a point, the energy is notdistributed continuously over ever-increasing
spaces, but consists of a finite number of
energy quanta that are localized in points in
space, move without dividing, and can beabsorbed or generated only as a whole.
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In 1900, Max Planck suggested that
electromagnetic energy could only be
emitted in quantized form.
In 1905, Albert Einstein Explained thephotoelectric effect i.e. light itself consists
of individual quantum particles (photons).
In 1925, Wolfgang Pauli Outlined the Pauli
exclusion principle which states that no twoidentical fermions may occupy the same
quantum state simultaneously.
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Gravitational Effect
The force between two matter particles is pictured
as being carried by a particle of spin 2 called the
graviton, thishas no mass of its own.
Electromagnetic Force
The electromagnetic attraction is pictured as being
caused by the exchange of large no. of virtual mass
less particles of spin 1 called photons.
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Nuclear force
It is responsible for radioactivity & which
acts on all matter particles of spin such as
photons and gravitons Strong Nuclear Force
It holds the quarks together in proton and
neutron, and holds the protons and neutrons
together in the nucleus of an atom. It isbelieved that this force is carried by another
spin-1 particle called the Gluon.
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Any two variable that do not
commute cant be measured
simultaneously-the moreprecisely one is known the less
precisely other can be known.
HxHp "!h/2It can be proved using the properties
of fourier transformation.
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In classical mechanics there is pre
determined that what will happen in
th
e past, present and future..But in quantum mechanics past,
present and future mingle with each
other and there is no surity of any
thing to be happened.
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Rigidity of the surface of the solid material.
If there is sun and we are not going to
measure any of the effects of the sun then
there is no surety of existence of the sun andsame is the case for every object.
It can be the case that the judges sitting for
judgement, judge the candidates before the
performance of the candidate.
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Why the events occuring in this
universe is determinstic even if the
quantum mechanics is working in the
small scale??
How can we satisfy the relativistic
theory, which is the theory for very
large objects, with the quantummechanics which is the theory of
very small??
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There exists two type of universe, in first
there is energy constant and time vary, and
in second time is constant and energy is vary.
If we mix up those two universe then we canget the exact picture of the universe which is
present today.
At a time only one event can occur in this
universe
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THANKYOU