If the bulb is switched off, then we would call it non-luminous.
If you have a lava lamp turned off for at least 2 days or less then it won't be as hot. hope this works. - Lola Parks
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! :)
yes
Luminous objects are the objects that responsible for our vision and omit their own light. Stars, radium, LED, and sparks are some of example of artificial luminous object.
No you do not.
A flashlight can be luminous when turned on, emitting light from the bulb. It can be nonluminous when turned off because at that point it is not emitting any light.
i think luminous means when something gives off light and non-luminous means when something does not give off light.
A flashlight is luminous when it is turned on and emitting light. It is non-luminous when it is turned off and not emitting any light. So, a flashlight can be both luminous and non-luminous at different times depending on its operational state.
A standard lamp will not use any electricity when it is off.
A TV, when it's on and showing an image is luminous. When it's off, it's non luminous.
Yes, anything that gives off light e.g. the sun is luminous. So would be a lamp and the moon, however not all things e.g. Not a mirror, not a table and not a piece of paper.
If you have a lava lamp turned off for at least 2 days or less then it won't be as hot. hope this works. - Lola Parks
A flashlight can be both luminous and non-luminous at the same time if it is turned on in a well-lit room. The flashlight itself emits light (luminous) while the ambient light in the room also contributes to the overall illumination (non-luminous).
as long as the lamp is turned off, otherwise you will have a fire!
Yes, a lamp consumes a small amount of electricity even when turned off because it is still connected to a power source and has standby power consumption.
Yes, anything that gives off light e.g. the sun is luminous. So would be a lamp and the moon, however not all things e.g. Not a mirror, not a table and not a piece of paper.
No, it should not use any electricity when off. If it is, you have a short or a ground.