How many wavelengths ofKr_(86) are there in one metre?

1.	How many wavelengths ofKr_(86) are there in one metre?
Answer» 2348123.73 652189.63 1553164.13 1650763.73 Solution :One metre = 1650763.73 wavelengths in VACUUM, of RADIATION corresponding to ORANGE RED light of Krypton 86.

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