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Recent questions tagged diificult

Find the typical de- Broglie wave length associated with a Helium gas at room temperature $(27^{\circ})$ and latm pressure, and compare it with the mean separation between two atoms under there conditions .

asked Jun 29, 2016 by meena.p

1 answer

Two towers on the top of two hills are 40 km apart . The line joining then passes 50 m above a hill way between the towers . What is the longest wave length of radio waves which can be sent between the towers with out appreciable diffraction effects ?

asked Jun 20, 2016 by meena.p

1 answer

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