Your camera’s zoom lens has an adjustable focal length ranging from 77 to 224 mm. What is its range of powers

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Your camera’s zoom lens has an adjustable focal length ranging from 77 to 224 mm. What is its range of powers

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Nick 2 months 2021-07-30T06:00:26+00:00 1 Answers 1 views 0

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    2021-07-30T06:02:13+00:00

    Answer: 0.446\ D\ \text{to}\ 1.298\ D

    Explanation:

    Given

    Camera has an adjustable focal length ranging from 77 to 224 mm

    Power is given by Reciprocal of focal length in meter

    Power corresponding to 77 cm

    \Rightarrow P=\dfrac{1}{0.77}\\\\\Rightarrow P=1.298\ D

    Power corresponding to 224 cm

    \Rightarrow P=\dfrac{1}{2.24}\\\\\Rightarrow P=0.446\ D

    Therefore, the range of the power is 0.446\ D\ \text{to}\ 1.298\ D

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