Assertion : An example of K-capture is `._(56)^(133)Ba + e^(-) rarr ._(55)^(133)Cs + X`-ray. Reason : The atomic number decreases by one unit as result of K-captureA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanantion of the assertionC. If assertion is true but reason is falseD. If the assertion and reason both are false

Assertion : An example of K-capture is `._(56)^(133)Ba + e^(-) rarr ._

1.	Assertion : An example of K-capture is `._(56)^(133)Ba + e^(-) rarr ._(55)^(133)Cs + X`-ray. Reason : The atomic number decreases by one unit as result of K-captureA. If both assertion and reason are true and the reason is the correct explanation of the assertionB. If both assertion and reason are true but reason is not the correct explanantion of the assertionC. If assertion is true but reason is falseD. If the assertion and reason both are false
Answer» Correct Answer - B In some nuclides, the nucleus may capture an electron from the K--shell and the vacancy created is filled by electrons from higher levels giving rise to characteristic X-rays. This process is known as K-electron capture or simply K-capture.

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