The wave emitted by any atom or molecule must have some finitetotal length which is known as the choherence length. For sodium light, this length is `2.4 cm`. The number of oscillations in this length will be Given `lambda=5900A^(@)`A. `4.068xx10^(5)Hz`B. `4.068xx10^(4)Hz`C. `4.068xx10^(6)Hz`D. `4.068xx10^(8)Hz`

The wave emitted by any atom or molecule must have some finitetotal le

1.	The wave emitted by any atom or molecule must have some finitetotal length which is known as the choherence length. For sodium light, this length is `2.4 cm`. The number of oscillations in this length will be Given `lambda=5900A^(@)`A. `4.068xx10^(5)Hz`B. `4.068xx10^(4)Hz`C. `4.068xx10^(6)Hz`D. `4.068xx10^(8)Hz`
Answer» Correct Answer - B No. of ocillations in this length `=(l)/(lambda)`

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