Optics physics

  • Thread starter adulapuram
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  • #1
adulapuram
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Homework Statement



1. When a wave is reflected from a mirror, there is no change in its
a) Amplitude b) Frequency c) Velocity d) All


Homework Equations





The Attempt at a Solution



I think frequency changes,not sure
 

Answers and Replies

  • #2
cupid.callin
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i guess all
 
  • #3
timon
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tip 1: If the frequency changes, the color of the light changes.
tip 2: the speed of light, c, is constant under all circumstances.
tip 3: [tex]\lambda = \frac{c}{f}[/tex]
 
  • #4
cupid.callin
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tip 1: If the frequency changes, the color of the light changes.
tip 2: the speed of light, c, is constant under all circumstances.
tip 3: [tex]\lambda = \frac{c}{f}[/tex]

c is not constant in all circumstances.
it remains same in same medium
and it is c only in vaccum not in air
 
  • #5
ehild
Homework Helper
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tip 2: the speed of light, c, is constant under all circumstances.
tip 3: [tex]\lambda = \frac{c}{f}[/tex]

The speed of light depends of the medium. The ratio c/v is called the refractive index. The wavelenght is v/f.

ehild
 

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