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How many wavelengths of Krog are there in one metre? Orange red light of kp86(a) 2348123.73 (b) 1553164.13(c) 652189.63 (d) 1650763.73 |
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Answer» tion:The ANSWER is (d) 1 650 763.73This question relates to a definition of the meter that was in effect from 1960 until 1986, and stated that one meter was equal to the total length of 1 650 763.73 WAVELENGTHS of the orange-red emission line in the electromagnetic spectrum of the krypton-86.This question relates to a definition of the meter that was in effect from 1960 until 1986, and stated that one meter was equal to the total length of 1 650 763.73 wavelengths of the orange-red emission line in the electromagnetic spectrum of the krypton-86.(It has since been REPLACED by a definition based on the SPEED of light.) |
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