Luminous objects are things that let out light without the help of anything else. Examples are:
Stars
Lighted candles
Sparks
Flames
Heating coils
LEDs
TV Screens
Discharge tube
good its not bad
Scientific name :)
Newton described gravity as the force of attractionbetween any two (or more) bodies having mass.Newton's Law of gravitation states that this force of attraction is directly proportional to the product of the masses of the two bodies and inversely proportional to the square of the distance between them.F = G (M1.M2/r2)
The temperature is higher and the soot is minimal.
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No. The definition of a star is "any of the large, self-luminous, heavenly bodies, as the sun, Polaris, etc." Mercury is a planet that orbits a star - our sun.
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.
An non-luminous object can be any oject that doesn't produce light, e.g. wood, metal, plastics, etc.
An non-luminous object can be any oject that doesn't produce light, e.g. wood, metal, plastics, etc.
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.
No!
Luminous materials are substances that emit light after being exposed to a light source. This light emission can be immediate or can continue for a period of time after the light source is removed. Luminous materials are commonly used in safety signs, glow-in-the-dark products, and other applications where visibility in low light conditions is important.
The non-luminous is those objects which do not produce its own light.It provide the light which is reflecting from another e.g.moon did not produce its own light,sun is giving the light to moon,moon reflecting the light of sun.
You can find it on any floor in any dungeon.
A planet is a non-luminous approximately spherical solid or gas that is a satellite of a star and that clears its orbital path of any smaller bodies. OR A planet is a solid orbiting body of a star, leaving comets out of the discussion. I have trouble thinking of a planet as a gas.
The VISIBLE FIXTURES IN SKIES mean luminous that emit any light.
A lamp or a flame radiate light. (as do incandescent bodies) A radiator radiates heat, (as does any other hot body) And speakers or horns radiate sound ( as do any vibrating bodies)