Question

WHAT IS OPAQUE MATERIAL?
WHICH OF THE FOLLOWING IS OPAQUE MATERIAL:-

A) A PIECE OF WOOD
B) PURE WATER
C) PURE AIR
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Answer 1

Answer:

Opaque materials are those which don't allow light to pass through them.

Wood is an opaque object.

Answer 2

Answer:

a opaque material is a object through which light can not pass. e.g=A PIECE OF WOOD