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A level Biology: Post your doubts here!

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it was varient 33 u did explain but mine is v31 which is a little bit different :)

Check the working first and then go tio the step 1 and step 2, look we r given 1 stage div=o.1mm and i can see that 5 stage = to 50 eyepiece to i calculated the length of 5 stgae and then use it for 50 eyepiece, now for 1 eyepiece we divide it by 50. Hope it helps
 

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