18. Which of the following material allows light to pass through it? ?
( (a) Copper
(b) Brass
(d) None of these.
(c) Tin
O
(a)
(b)
()
0
(d)
Answers
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Answer:
d) non of this is the answer
Answered by
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Answer:
(d) None of these..............
Explanation:
glass
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