Albert Einstein

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NISHA M NAIRPHYSICAL SCIENCE

SNTC Nedunganda

POWER POINT PRESENTATION

THE EMPEROR OF SCIENCE

ALBERT EINSTEIN

BORN IN ULM ,GERMANY ON MARCH 14, 1879

EDUCATION WAS COMPLETED IN GERMANY,ITALY AND SWITZERLAND

HE WAS APPOINTED DIRECTOR OF KAISER WILHEM INSTITUTE OF PHYSICS IN 1914

BECAME PROFESSOR IN THE SCHOOL OF MATHEMATICS AT THE INSTITUTE OF ADVANCED STUDIES IN PRINCETON

EDUCATION AND CARRIER

HE WAS A THEORITICAL PHYSICIST WHO DEVELOPED THE GENERAL THEORY OF RELATIVITY , ONE OF THE MAJOR PILLARS OF MODERN PHYSICS ( ALONG WITH QUANTUM MECHANICS )

HE RECEIVED NOBEL PRIZE IN PHYSICS ON 1921 FOR HIS SERVICE TO THE THEORITICAL PHYSICS ESPECIALLY FOR HIS DISCOVERY OF THE LAW OF PHOTO ELECTRIC EFFECT

CONTRIBUTIONS

PHOTO ELECTRIC EFFECT

WHEN A LIGHT OF SUITABLE FREQUENCY STRIKES A METAL SURFACE ,ELECTRONS ARE EJECTED.

IT RESOLVED AN UNSOLVED PUZZLE BY SUGGESTING THAT ENERGY IS EXCHANGED ONLY IN THE DESCRETE AMOUNT CALLED QUANTA.THE IDEA WAS PIVOTAL TO THE EARLY DEVELOPMENT OF QUANTUM THEORY.

WHAT IS PHOTO ELECTRIC EFFECT?

HE THOUGHT THAT NEWTONIAN MECHANICS WAS NOT ENOUGH TO RECONCILE THE LAWS OF CLASSICAL MECHANICS,LAWS OF ELCTROMAGNETIC FIELD,ACCOUNTED MAX WELLS EQUATION UNDER HIS PUBLICATION “ON THE ELECTRODYNAMICS OF MOVING BODIES” INTRODUCED THEORY OF RELATIVITY

THE THEORY GIVES A PERFECT PICTURE THAT EVERY BODY IN THE UNIVERSE IS RELATED WITH OTHERS.

THEORY OF RELATIVITY

THE LAWS OF PHYSICS ARE THE SAME FOR ALL OBSERVERS ARE IN UNIFORM MOTION RELATIVE TO ONE ANOTHER.

THE SPEED OF LIGHT IN VACUUM IS THE SAME FOR ALL OBSERVERS ,REGARDLESS OF THEIR RELATIVE MOTION OF LIGHT SOURCE.

POSTULATES OF RELATIVITY

THE MEASUREMENT OF VARIOUS QUANTITIES ARE RELATIVE TO THE VELOCITIES OF OBSERVERS.

SPACE TIME: SPACE AND TIME SHOULD BE CONSIDERED TOGETHER

THE SPEED OF LIGHT IS INVARIENT ,SAME FOR ALL OBSERVERS.

CONCEPTS OF RELATIVITY

ON THE BASIS OF RELATIVITY AND CONSIDERING LIGHT HAS THE HIGHEST VELOCITY ,EINSTEIN DEVELOPED A MASS ENERGY EQUIVALANCE.

MASS – ENERGY EQUIVALENCE

IN PHYSICS ,MASS ENRGY EQUIVALANCE IS THE CONCEPT THAT THE MASS OF AN OBJECT OR SYSTEM IS A MEASURE OF ITS ENERGY CONTENT

IN THE EQUATION ,C- SPEED OF LIGHT,M –MASS,E- ENERGY

THE MASS ENERGY RELATION STATES THAT THE UNIVERSAL PROPORTIONALITY FACTOR BETWEEN EQUIVALENT AMOUNT OF ENERGY AND MASS IS EQUAL TO SPEED OF THE LIGHT SQUIRED

IT ALSO SERVES TO CONVERT UNITS OF MASS TO UNIT OF ENERGY ,NOMATTER WHAT SYSTEM OF MEASUREMENT UNIT IS USED

CONCEPT

THIS FACT IS BASIC FOR NUCLEAR REACTIONS SUCH AS FISSION,LEADS TO ATOMIC BOMBS

CONSIQUNCE

DEATH : 18 APRIL 1955

……..THANK YOU………..