Sir plz see whether i am r8??

As the cavities are vacuum,so there will be no gravitational forces bet. them,and as d gas expands,they will simply move apart from each other?

2 Answers

1161

Akash Anand ·2013-09-17 02:22:35

If you take both cavities as negative mass then they are going to attract each other. I m still looking for the other reasons apart from this.

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Anurag Ghosh Is negative mass concept there in our JEE syllabus??...As i googled the negative mass concept......its a bit higher concept.....And sir the temperature given is 0K i.e -273 deg. celcius,so d cavities could have been static also na?
Upvote·0· Reply ·2013-09-17 08:37:46
Akash Anand Its not in jee syllabus but, solving a question by that concept is not a wrong Idea. We use the same concept in case of cavities as well. You dont have to go in so much depth, just formal idea and application will be enough I guess.
Upvote·0· Reply ·2013-09-18 01:34:56
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Anurag Ghosh ·2013-09-18 04:02:19

Hmmmm.....thank u sir...:)

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