MCQ
According to $C.E.$ van der Waal, the interatomic potential varies with the average interatomic distance $(R)$ as
- A$R^{-1}$
- B$R^{-2}$
- C$R^{-4}$
- ✓$R^{-6}$
Interatomic potential varies with average interatomic distance as $R^{-6}$ which is a fact.
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$(A)$ a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
$(B)$ a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is open.
$(C)$ a low-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.
$(D)$ a high-pressure pulse starts traveling up the pipe, if the other end of the pipe is closed.