Doppler Effect Question - ANSWER REQUIRED ASAP (1 Viewer)

[amdspotter]

if someone could quickly answer this q: (it would be greatly appreciated, i need answer asap)

• Identify the mathematical relationship between frequency shift and the velocity of an object.

 

[icy2204]

This is also on the physics formula sheet under waves and thermodynamics.

 

[amdspotter]

View attachment 30852
This is also on the physics formula sheet under waves and thermodynamics.

yes but what is the relationship between velocity of an object and observed frequency

 

[icy2204]

The formula explains it, but basically if the two objects are moving closer, the apparent frequency would be higher, and vice versa for the opposite

 

[amdspotter]

The formula explains it, but basically if the two objects are moving closer, the apparent frequency would be higher, and vice versa for the opposite

Oh ok thanks

 

[jimmysmith560]

I found this info:

If the source is moving away (positive velocity) the observed frequency is lower and the observed wavelength is greater (redshifted).

If the source is moving towards (negative velocity) the observed frequency is higher and the wavelength is shorter (blueshifted).

The region where an observer perceives an increase in the frequency of light is referred to as "blueshifted", and the region where the observer would perceive a lower frequency is referred to as "redshifted."

From https://imagine.gsfc.nasa.gov/features/yba/M31_velocity/spectrum/doppler_more.html

You might like to check out that link as it might contain some additional info that you may find useful.


I hope this helps!

 

[icy2204]

I found this info:

If the source is moving away (positive velocity) the observed frequency is lower and the observed wavelength is greater (redshifted).

If the source is moving towards (negative velocity) the observed frequency is higher and the wavelength is shorter (blueshifted).

The region where an observer perceives an increase in the frequency of light is referred to as "blueshifted", and the region where the observer would perceive a lower frequency is referred to as "redshifted."


You might like to check out that link as it might contain some additional info that you may find useful.


I hope this helps!

NOTE:
This is for Year 12 physics under module 7: the nature of light.
IT IS NOT REQUIRED FOR YEAR 11 PHYSICS
Blue shift and red shift is quite an interesting concept for determining the motion of stars which is pretty cool though.

 

[jimmysmith560]

NOTE:
This is for Year 12 physics under module 7: the nature of light.
IT IS NOT REQUIRED FOR YEAR 11 PHYSICS.
Fun to know for year 12 though i guess

Thanks for the clarification!

 

[amber630]

People here can make great tutors... and here I am just thinking "they are inversely proportional".