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Byju's Answer
Standard VIII
Physics
Luminous Intensity
Inverse squar...
Question
Inverse square law for illuminance is valid for
A
isotropic point source
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B
cylindrical source
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C
search light
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D
all types of sources
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Solution
The correct option is
D
all types of sources
Inverse square law for illuminance is valid and can be applied for
all types of sources.
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