In the intercept on the y-axis is equal toA. `+(W)/(e)`B. `-(W)/(e)`C. `-We`D. `(e)/(W)`

In the intercept on the y-axis is equal toA. `+(W)/(e)`B. `-(W)/(e)`C.

1.	In the intercept on the y-axis is equal toA. `+(W)/(e)`B. `-(W)/(e)`C. `-We`D. `(e)/(W)`
Answer» Correct Answer - B The maximum KE of the photoelectrons is given by `((1)/(2)mv^(2))_(max)=hv-W` Now, `v=c/(lamda)` and ` ((1)/(2)mv^(2))=eV` `eV=(hc)/(lamda)-W` or `V=((hc)/(e))(1)/(lamda)-(W)/(e)` Since V is represented along y-axis and `((1)/(lamda))` along x-axis, the above equation represents a straight line. Slope of straight line `=(hc)/(e)` Intercept of straight line `=-((W)/(e))`

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In the intercept on the y-axis is equal toA. `+(W)/(e)`B. `-(W)/(e)`C. `-We`D. `(e)/(W)`

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