At 200^(@)C the velocity of hydrogen molecule is 2.0 xx 10^(5) cm/sec. In this case, the de-Broglie wavelength is about ________Å.

At 200^(@)C the velocity of hydrogen molecule is 2.0 xx 10^(5) cm/sec.

1.	At 200^(@)C the velocity of hydrogen molecule is 2.0 xx 10^(5) cm/sec. In this case, the de-Broglie wavelength is about ________Å.
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