Turn on thread page Beta
    • Thread Starter
    Offline

    7
    ReputationRep:
    Why are two spectra observed in a diffraction grating?
    Offline

    16
    ReputationRep:
    is this AS AQA physics?
    Offline

    3
    ReputationRep:
    (Original post by Custardcream000)
    Why are two spectra observed in a diffraction grating?
    like light and dark patches? That's because waves interfere constructively at the light areas and destructively in the dark areas
    • Thread Starter
    Offline

    7
    ReputationRep:
    (Original post by thefatone)
    like light and dark patches? That's because waves interfere constructively at the light areas and destructively in the dark areas
    no like white light, so there would be two violet, blue etc
    Offline

    3
    ReputationRep:
    (Original post by Custardcream000)
    no like white light, so there would be two violet, blue etc
    because each side is a mirror of the other
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: March 21, 2016
The home of Results and Clearing

2,372

people online now

1,567,000

students helped last year

University open days

  1. Keele University
    General Open Day Undergraduate
    Sun, 19 Aug '18
  2. University of Melbourne
    Open Day Undergraduate
    Sun, 19 Aug '18
  3. Sheffield Hallam University
    City Campus Undergraduate
    Tue, 21 Aug '18
Poll
A-level students - how do you feel about your results?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.