Question

2) Classify the following objects / materials into transparent, opaque and
translucent :
Mirror. tracing paper, air, pencil, muddy water, pure water, milk, milky
glass. spectacle lens. cloud. brick, castor oil.
Transparent objects/ materials:
Opaque objects / materials :
Translucent objects/ materials:​

Answer 1

Answer:

transparent

air,pure water,spectacle lens

translucent

tracing paper, milky glass,muddy water,,castor oil

opaque

mirror,pencil,milk,cloud,brick

Answer 2

Answer:

Transparent:- air, pure water, spectacle lens

Opaque:- muddy water, milk, cloud, mirror

Translucent:- tracing paper, pencil, brick, castor oil

[Clouds can be transparent, translucent or opaque, depending on the quantity of water vapour in it. All 3 cannot be true at the same time. If the vapour density is low, the clouds are transparent ]