Question

Please help 30 points. write definition and examples of each. (give atleast 2 examples).

a) luminous objects.
b) non- luminous objects.
c) opaque objects.
d) translucent objects.
e) transparent objects.​

Answer 1

a) luminous objects.

= If light is emitted by object,the object is called Luminous Object.

Examples: Torch, Candle, etc.

b) non- luminous objects.

= Objects that cannot emit light energy by themselves are known as non-luminous objects.

Examples: Moon, wood, etc.

c) opaque objects.

= The object which do not allow the light to pass through are called opaque object.

Examples: stone, wood etc.

d) translucent objects.

= Those objects through which light can pass partially are called translucent objects.

Examples: paper, plastic, etc.

e) transparent objects.

= Those object through which light can pass easily are called transparent.

Examples: water, glass, etc.

Hope it helps !

Answer 2

objects that generate light are called as luminous objects

objects that do not generate light are called as luminous objects

objects in which light cannot pass through it is known as opaque

objects in which light pass partially through it is known as translucent

objects in which light can pass through it in known as transparent