Questions
Experiment shows that two perfectly neutral parallel metal plates separated by a small distance 'd' attract each other via a very weak force, known as the Casimir force. The force per unit area of the plates, F, depends only on the Planck constant h, on the speed of light c, and on ‘d’. Which of the following has the best chance of being correct for F?
detailed solution
Correct option is B
F= Newton m2(a) hcd2= joule-sec. metre sec. 1( metre )2 = joule metre = Newton (b) hcd4=hcd21d2= Newton m2. Hence F=hc/d4(c) hd2c= Joule.sec(metre )2 metre sec= Newton-metre 2sec2(d) d4hc=1hcd4=m2 NewtonTalk to our academic expert!
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The quantities A and B are related by the relation A/B = m, where m is the linear mass density and A is the force, the dimensions of B will be
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