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focal question help

  • 03-10-2012 6:12pm
    #1
    Closed Accounts Posts: 258 ✭✭


    how do i do this the question sasys the object is a very large distance from the concave mirror of focal length 40 find the distance from the image to the mirror. I dont understand as it dosnt give you 2 values to solve the problem or the magnification pls help fast :confused::confused:


Comments

  • Closed Accounts Posts: 258 ✭✭Liamo_mu


    help


  • Closed Accounts Posts: 2,616 ✭✭✭FISMA


    Liamo_mu wrote: »
    how do i do this the question sasys the object is a very large distance from the concave mirror of focal length 40 find the distance from the image to the mirror. I dont understand as it dosnt give you 2 values to solve the problem or the magnification pls help fast :confused::confused:

    Step 1: Write down everything that you are given.
    Step 2: Write down what you want.

    Your turn...


  • Registered Users, Registered Users 2 Posts: 147 ✭✭citrus burst


    Concave mirrors have a characteristic that if the image distance is much greater then the focal length, all the light will converge at the focal point.


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