A metal surface having v_(0) as threshold frequency is incident by light of frequency v, then select the correct statement

A metal surface having v_(0) as threshold frequency is incident by lig

1.	A metal surface having v_(0) as threshold frequency is incident by light of frequency v, then select the correct statement
Answer» <html><body><p>`u = sqrt((<a href="https://interviewquestions.tuteehub.com/tag/2h-300377" style="font-weight:bold;" target="_blank" title="Click to know more about 2H">2H</a>.c(lambda_(<a href="https://interviewquestions.tuteehub.com/tag/0-251616" style="font-weight:bold;" target="_blank" title="Click to know more about 0">0</a>)-<a href="https://interviewquestions.tuteehub.com/tag/lambda-539003" style="font-weight:bold;" target="_blank" title="Click to know more about LAMBDA">LAMBDA</a>))/(m lambda_(0)lambda))`<br/>`u = sqrt((2h(v-v_(0)))/(m))`<br/>`u = sqrt((2h(lambda_(0)-lambda))/(m))`<br/>`u = sqrt((2(hv-W))/(m))`</p><a href="https://interviewquestions.tuteehub.com/tag/answer-15557" style="font-weight:bold;" target="_blank" title="Click to know more about ANSWER">ANSWER</a> :A</body></html>