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Doppler - General Physcis - Lecture Slides, Slides of Physics

Physics is about nature. This course covers almost every concept related to physics. Important points in this lecture are: Doppler, Moving Source, Wavelength Shift, Frequency Shift, Moving Observer, Speed Gun, Doppler Shift, Shift For Pulse, Wave Crests, Pulse Out

Typology: Slides

2012/2013

Uploaded on 07/12/2013

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Doppler Effect
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Doppler Effect

Moving Source

Light moves equally in all directions from a source.

•^

Circular (or spherical) pattern

If the source is moving the origin of successive circlesmoves.

Frequency Shift

The period is related to thewavelength. 

This can be converted into afrequency shift.•

Requires correction for specialrelativity

c v

c v

f

f

f v

Moving Observer

If the observer is moving toward the source the effect issimilar, but the wave crests have a different relativespacing.

1 (^

v u

f

f^

^ 

A speed gun uses adouble Doppler shift.There is a shift forboth the pulse out andreflected signal.