A circular metallic disc of radius R has a small
circular cavity of radius r as shown in figure. On
heating the system
(1) Rincreases and r decreases
(2) R decreases and r increases
(3) Both R and r increases
(4) Both R and r decreases
Answers
Answered by
2
Answer:
2 will be the answer........... ok
Answered by
12
Answer:
3) Both R and r increase
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