The diagrams show rays of light passing through two lenses labelled M and N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1
Question 2
The diagrams show rays of light passing through two lenses labelled M and N.
(i) Complete the sentence by putting a cross (✓) in the box next to your answer.
The li... show full transcript
Worked Solution & Example Answer:The diagrams show rays of light passing through two lenses labelled M and N - Edexcel - GCSE Physics - Question 2 - 2013 - Paper 1
Step 1
Complete the sentence by putting a cross (✓) in the box next to your answer.
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Answer
The light changes direction as it leaves the lenses. This is called refraction. Therefore, the correct answer is B.
Step 2
Calculate the power of lens M.
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Answer
The power of a lens can be calculated using the formula:
P=f1
where:
P is the power in diopters (D)
f is the focal length in meters
Given that the focal length of lens M is 2 m, we can substitute this value into the formula:
