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What is the illumination on a surface that is 3.0 M below a 150 W lamp that emits a luminous flux o f 2275?
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Is a burning candle luminous?
A candle is a luminous object because it emits to light by itself
Is gold non luminous object?
sun (a luminous object) emits its own light and the moon ( a non luminous object ) reflects the light from the sun to earth that's how we can see the moon. The same way gold is a non luminous object.
Differentiate luminous and non-luminous?
luminous - emits light e.g. the sunnon- luminous - does not emit light though will often reflect light e.g. the moon.
how can a flashlight be both luminous and non-luminous at the some time?
A flashlight is luminous when it emits light (turned on). It's non-luminous when it's off or the battery dies.
Is a lamp luminous or non luminous?
Planets( Mercury, Venus, Earth, Jupiter, Saturn, Uranus, Neptune) and also Moons are Non-Luminous objects they don't emit light. The reason we see them because they reflect light from the Sun.
Is the moon luminous or illuminated?
The moon is illuminated by the sun. It is not luminous, since it emits no light of its own, only reflected light.
Is Jupiter a luminous or non luminous planet?
Jupiter is not luminous in that it emits light, it reflects the Suns light so that it is visible to us on Earth. See also Albedo.
What is the non luminous material?
The objects/bodies which do not produces(emits) light on their own are known as non-luminous material. For ex- moon
Sentence with effluvium in it?
The luminous subtance randomly emits small amounts of effluvium
Why does the luminosity of the star depend on both its radius and its temperature?
The bigger the star's radius, the greater its surface area which emits the light. The bigger the temperature, the more luminous is the light the star is emitting.
Why is the flame known as luminous flame?
It is bright, and could not be seen clearly as it emits light
Is a torch luminous or non luminous?
At first light it DOES sound a bit confusing. First, the definition of the term 'NON-LUMINOUS'; 'Not capable of PRODUCING light but can be capable of REFLECTING light from another source'. For instance, our MOON is NON-LUMINOUS as it REFLECTS light from the Sun. The SUN is LUMINOUS as it produces light that is REFLECTED off the surface of the moon. And so, LUMINOUS means capable of PRODUCING light. Now closely examine your flashlight. The BATTERIES produce electrical energy which is transferred to the BULB which emits light, thus LUMINOUS. The tiny little BULB emits quite a lot of light for its small size. However, the bulb is contained within a concave silvered cone which REFLECTS,(NON-LUMINOUS) gathers and channels the emitted light from the BULB (LUMINOUS) into a BEAM which ILLUMINATES whatever you are pointing the flashlight at. Our cameras would be just paperweights if there were no NON-LUMINOUS surfaces for the light to REFLECT off of, back into the camera lens, onto the 'plate' thus etching the image. For example, take a photograph in the dark without the flash and what do you get. No LUMINOUS, no NON-LUMINOUS. And so there we have LUMINOUS and NON-LUMINOUS, ILLUMINATING our lives. Enjoy! :)
