Lens Physics Gcse Coursework

please please please help me!
I have the paper 2 coming up soon and I'm so stressed.

I'm having difficulty with the questioning and answering.

1. The context question
My results show that when you increase the angle of incidence you increase the angle of refraction.

This is the context: A lens manufacturer wants to design a lens that refracts the light so that it focuses the light to correct for sight defects. they need to investigate a factor that affects the angle of refraction. {this is question is what I need major help with}

2. why would I make changes to my method???
I know it supports my hypothesis. I guess I could do more repeats. I don't have anomalies though so how could answer this one???

3. what causes could make uncertainties in my measurements?
Ambient light maybe???? I have no clue!!!!! I must explain it too.

PLEASE HELP I WILL LOVE YOU FOREVER IF YOU HELP ME
thankyou

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  1. I'm doing my Physics ISA on Lenses in a few days, and I need any help I can get, whether its the paper, questions, experiment ideas or anything else. We were told to "investigate a factor that affects the position of a real, sharply focused image produced by a convex lens", and the context is; "The use of a lens in a camera"
    Thanks
  2. It's against the rules to share information on ISAs.
    You can however ask physics questions about how the convex lenses work, just nothing specific to the ISA.
    (Original post by AtomicCow)
    I'm doing my Physics ISA on Lenses in a few days, and I need any help I can get, whether its the paper, questions, experiment ideas or anything else. We were told to "investigate a factor that affects the position of a real, sharply focused image produced by a convex lens", and the context is; "The use of a lens in a camera"
    Thanks
  3. You're not allowed to ask SPECIFIC questions like this! But my advice for ISA's would be to learn the key terms. And the questions are always, always, always pretty much the same!
    (Original post by AtomicCow)
    I'm doing my Physics ISA on Lenses in a few days, and I need any help I can get, whether its the paper, questions, experiment ideas or anything else. We were told to "investigate a factor that affects the position of a real, sharply focused image produced by a convex lens", and the context is; "The use of a lens in a camera"
    Thanks

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