Day 437: JEE Mains Physics

1. A.
   $X_{1}$
2. B.
   $X_{2}$
3. C.
   $X_{3}$
4. D.
   All the metals will give out photo electrons with same kinetic energies.

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1. A.
   $B_{o}\omega\left\lbrack \frac{1}{\lambda^{2}} - e^{- \lambda L}\left( \frac{1}{\lambda^{2}} + \frac{L}{\lambda} \right) \right\rbrack$
2. B.
   $B_{o}\omega\left\lbrack \frac{1}{\lambda^{2}} + e^{- \lambda L}\left( \frac{1}{\lambda^{2}} + \frac{L}{\lambda} \right) \right\rbrack$
3. C.
   $B_{o}\omega\left\lbrack \frac{4}{\lambda^{2}} - e^{- 2\lambda\text{ }L}\left( \frac{1}{\lambda^{2}} + \frac{2L}{\lambda} \right) \right\rbrack$
4. D.
   $B_{o}\omega\left\lbrack \frac{3}{\lambda^{2}} - e^{- 3\lambda\text{ }L}\left( \frac{3}{\lambda^{2}} + \frac{L}{\lambda} \right) \right\rbrack$

Tap an option to check your answer.

1. A.
   $\frac{I_{0}}{4}$
2. B.
   $I_{0}$
3. C.
   $\frac{I_{0}}{\sqrt{2}}$
4. D.
   $\frac{I_{0}}{2}$

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