\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.
The cost of sitting your GCSE or International GCSE exams as a private candidate varies depending on factors such as: The number of exams you're taking The subject you're sitting The exam board ...
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Nick DeSimone is a pasta-obsessed vegetarian chef who spent nearly 10 years in restaurants before becoming a food writer. They review kitchen products for Food & Wine and love plant-based and ...
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