Question

define Luminous, non luminous, transparent, Opaque and translucent bodies. give examples of each.​

Answer 1

Answer-

(i) $\large\sf\mathfrak\red{Luminous\:object-}$Luminous object is that which emits light by itself; for example, sun and stars.

(ii) $\large\sf\mathfrak\red{Non luminous\:object-}$Non luminous object is that object which does not emit light of its own; for example, moon.

(iii) $\large\sf\mathfrak\red{Transparent\:objects-}$Transparent objects are those objects which allow light to pass through them; for example, glass, air and water.

(iv) $\large\sf\mathfrak\red{Opaque\:objects-}$Opaque objects are those objects which do not allow light to pass through them; for example wood, metals, bricks etc.

(v) $\large\sf\mathfrak\red{Translucent\:objects-}$Translucent objects are those objects which allow only a part of the light to pass through them; for example grounded glass, greased paper and tracing paper.

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Answer 2

Answer:

Explanation:

Opaque-Those objects from which things cannot be seen through is opaque. Luminous-A luminous body is one that emits its own light example- sun. Non Luminous-Non luminous bodies are objects that reflect light from luminous bodies. example- moon.