Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12

The Luminous Flux of a 1 W Sodium Vapour Lamp is More than that of a 10 Kw Source of Ultraviolet Radiation. Comment. - Physics

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The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. Comment.

Solution

The luminous flux of a 1 W sodium vapour lamp is more than that of a 10 kW source of ultraviolet radiation. This is because the luminosity of a 1 W sodium vapour lamp is 589 nm or 589.6 nm, whereas the luminosity of UV radiation is zero.

Concept: Light Process and Photometry

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Chapter 22: Photometry - Short Answers [Page 453]

Q 2 Q 1 Q 3

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HC Verma Class 11, Class 12 Concepts of Physics Vol. 1

Chapter 22 Photometry
Short Answers | Q 2 | Page 453

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The Luminous Flux of a 1 W Sodium Vapour Lamp is More than that of a 10 Kw Source of Ultraviolet Radiation. Comment. - Physics

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