1.What is light?
Ans:Light is a form energy, which gives sensation ofof sig.
2.What is transparent medium?
Ans:A medium through which light can propagate easily.
Eg-glass, bottle, bulb etc
3.What is translucent medium?
Ans:A medium through which light can propagate partially.
Eg-paper, certain types of plastic, frosted glass etc.
4.What is opaque?
Ans:It is a medium through which light can not be propagate.
Eg- wood, cement wall, iron etc.