Find the ratio of de Broglie wavelength of molecules of hydrogen and helium which are at temperatures `27^circ` and `127^circC`, respectively.

Explanation

To find the ratio of the de Broglie wavelength of hydrogen and helium molecules at given temperatures, we can follow these steps:

### Step 1: Understand the de Broglie wavelength formula
The de Broglie wavelength (λ) of a particle is given by the formula:
\[ \lambda = \frac{h}{\sqrt{2mE}} \]
where:
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