• Question: Are all lights the same brightness

    Asked by 547ghtg33 to Dervil, Moises, Pramod, Saoirse, Stephen on 7 Nov 2016.
    • Photo: Dervil Cody

      Dervil Cody answered on 7 Nov 2016:

      The brightness of a light or bulb depends on the energy it consumes. In general f you increase the energy consumed, you’ll increase the brightness of the light! Thanks to developments in sciences, there are now new types of bulbs and LEDs which don’t need as much energy to produce the same brightness as older bulbs.
      Have a look at the image in the link for more info:

    • Photo: Stephen Davitt

      Stephen Davitt answered on 7 Nov 2016:

      No not at all! Different bulbs depending on their type, size and power have different brightness’s. Think of the torch on your phone compared to the overhead lights in school, the torch will be much brighter

    • Photo: Dr. Pramod Kumar

      Dr. Pramod Kumar answered on 8 Nov 2016:

      Not really , Because Brightness is termed as the amount of luminosity over a certain area of light coverage. So different light source may have different brightness.

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