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Maths & Physics Help

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SGVaibhav:
What are all the possible ways to measure the distance from the screen to the centre of the lens?

If possible, can u show it with a diagram?

astarmathsandphysics:
Try lining it up with a ruler or use a compass.

SGVaibhav:
By the way... how do i write that in the paper? ??? ???
there r many answers.
in markscheme they just write, correct method shown
i cannot ask my teacher also, because i have holidays.
so can u show me few ways

astarmathsandphysics:
Open your compass so ene end touches the edege of the lens and the other touches the edge of the compass. Then you can use that same distance anywhere.

SGVaibhav:
hmmm.
he thing is that it is Alternative to Practical Paper, not a practical paper.
so we have to write methods to measure. if the thing would be in front of me, i would have measured in some crappy way.  but over here, we cant do that

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