luminous flux वाक्य

उदाहरण वाक्य

1. In radiometry, radiosity, luminance, luminous flux, luminous intensity, illuminance, luminous emittance ).
2. It is obtained by dividing the luminous flux by the radiant flux.
3. Watts are units of radiant flux while lumens are units of luminous flux.
4. Illuminance is a measure of how much luminous flux is spread over a given area.
5. Retroreflective screens are seen as desirable due to the high image intensity they can produce with a given luminous flux from a projector.
6. They deliver almost twice as much luminous flux as the old ones and run on half the amount of energy as the former ones.
7. It reaches 80 % of its final luminous flux within 20 seconds, and the lamp can be restarted approximately five minutes after a power cut.
8. Also, a real CFL probably has a lower LER than the best-case estimate above, and so emits more radiant power to produce the same luminous flux.
9. If its area is 0.1 m 2 ( ~ 19 " monitor ) then the total light emitted, or luminous flux, would thus be 31.4 lm.
10. Light with wavelengths outside the visible spectrum reduces luminous efficacy, because it contributes to the radiant flux while the luminous flux of such light is zero.