A) \[\lambda \]
B) \[\frac{3\lambda }{4}\]
C) less than\[v{{(3/4)}^{1/2}}\]
D) greater than\[v{{\left( \frac{4}{3} \right)}^{1/2}}\]
Correct Answer: D
Solution :
Key Idea Apply Einsteins photoelectric equation. \[36\sqrt{7}\] \[4\sqrt{5}\] \[mg(h+d)+\frac{1}{2}k{{d}^{2}}\] \[mg(h+d)-\frac{1}{2}k{{d}^{2}}\] \[mg(h-d)-\frac{1}{2}k{{d}^{2}}\] \[mg(h-d)+\frac{1}{2}k{{d}^{2}}\] When wavelength is \[\pi \] and velocity is v, then \[({{\mu }_{0}}=4\pi \times {{10}^{-7}}Wb/Am)\] ??..(i) When wavelength is \[k\Omega \] and velocity is \[\alpha \]then \[\Omega \] ??(ii) Dividing Eqs. (ii) by (i), we get \[\Omega \] \[\Omega \] ie, \[\Omega \]
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