# JEE knocking the door!

**Chemistry**Level 3

The atomic masses of **Helium** and **Neon** are 4 and 20 amu respectively. What is the ratio of de Broglie wavelength of He gas at \(-73^\circ C\) compared to that of Ne gas at \(727^\circ C\)?

The answer is of the form \(\dfrac{a}{b}\), where \(a\) and \(b\) are coprime positive integers. Enter your answer as \(a+b\).