Luminous Intensity

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Luminous Intensity: Overview

This Topic covers sub-topics such as SI Unit for Luminous Intensity, Luminous Intensity, Photometer and, Luminous Flux

Important Questions on Luminous Intensity

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Is luminous flux the same as lux?

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What is luminous flux in LED?

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What is lumens or luminous flux?

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Is higher luminous flux better ? 

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Define luminous flux ?

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What are the uses of photometer?

 

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What is photometer method?

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Define Luminous Intensity.

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Write down SI unit for luminous intensity?

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A photometer is used to measure the luminous flux in lumen.

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The SI unit of luminous intensity is

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Candela is used to express electric field intensity.

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Intensity of light from a candle is approximately equal to one ‘candela’.

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Luminous Intensity is the amount of visible light, that is emitted in unit area per unit _____.

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What is the unit of measurement for luminous flux?

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How does the angle of emission affect the perceived luminous intensity?

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What happens to the intensity of light when the area increases at a constant power?

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What is the formula used to calculate luminous intensity?

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What would happen to the luminous intensity if the power of the light source is increased?

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Which of the following is true about the unit candela?