Einstein s Photo Electric Equation and Energy Quantity Of Radiation (KE, Vmax, Work Function)
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Dual nature of radiation and Matter

142191 The following graph represents the variation of photocurrent with anode potential for a metal surface. Here, $I_{1}, I_{2}$ and $I_{3}$ represents intensities and $\gamma_{1}, \gamma_{2}, \gamma_{3}$ represent frequency for curves 1,2 and 3 respectively, then :

1 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{2}$
2 $\gamma_{1}=\gamma_{3}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{3}$
3 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1}=\mathrm{I}_{2}$
4 $\gamma_{1}=\gamma_{2}$ and $I_{1}=I_{3}$
Karnataka CET-2020
Dual nature of radiation and Matter

142192 The graph of stopping potential $\left(V_{s}\right)$ against frequency $(v)$ of incident radiation is plotted for two different metals ' $P$ ' and ' $Q$ ' as shown in the graph. $\phi_{\mathrm{p}}$ and $\phi_{\mathrm{Q}}$ are work functions of $\mathrm{P}$ and $Q$ respectively, then

1 $\phi_{\mathrm{P}}>\phi_{\mathrm{Q}}$
2 $\phi_{\mathrm{P}} \lt \phi_{\mathrm{Q}}$
3 $\phi_{\mathrm{P}}=\phi_{\mathrm{Q}}$
4 $\mathrm{v}_{0}^{\prime} \lt \mathrm{v}_{0}$
MHT-CET 2020
Dual nature of radiation and Matter

142193 Using Einstein's photoelectric equation, the graph between the K-E.(E) of photoelectrons emitted and the frequency of incident radiation $(v)$ is shown correctly in figure

1 (3)
2 (2)
3 (4)
4 (1)
MHT-CET 2020
Dual nature of radiation and Matter

142194 A metal surface having work function ' $w_{0}$ ' emits photoelectrons when photons of energy ' $E$ ' are incident on it. The electron enters the uniform magnetic field $(B)$ in perpendicular direction and moves in circular path of radius ' $r$ '. Then ' $r$ ' is equal to ( $m$ and e be the mass and charge of electron respectively).

1 $\frac{m\left(E-w_{0}\right)}{e B}$
2 $\frac{\sqrt{\mathrm{m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}}{\mathrm{eB}}$
3 $\frac{2 \mathrm{~m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}{\mathrm{eB}}$
4 $\frac{\sqrt{2 m\left(E-w_{0}\right)}}{e B}$
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Dual nature of radiation and Matter

142191 The following graph represents the variation of photocurrent with anode potential for a metal surface. Here, $I_{1}, I_{2}$ and $I_{3}$ represents intensities and $\gamma_{1}, \gamma_{2}, \gamma_{3}$ represent frequency for curves 1,2 and 3 respectively, then :

1 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{2}$
2 $\gamma_{1}=\gamma_{3}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{3}$
3 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1}=\mathrm{I}_{2}$
4 $\gamma_{1}=\gamma_{2}$ and $I_{1}=I_{3}$
Karnataka CET-2020
Dual nature of radiation and Matter

142192 The graph of stopping potential $\left(V_{s}\right)$ against frequency $(v)$ of incident radiation is plotted for two different metals ' $P$ ' and ' $Q$ ' as shown in the graph. $\phi_{\mathrm{p}}$ and $\phi_{\mathrm{Q}}$ are work functions of $\mathrm{P}$ and $Q$ respectively, then

1 $\phi_{\mathrm{P}}>\phi_{\mathrm{Q}}$
2 $\phi_{\mathrm{P}} \lt \phi_{\mathrm{Q}}$
3 $\phi_{\mathrm{P}}=\phi_{\mathrm{Q}}$
4 $\mathrm{v}_{0}^{\prime} \lt \mathrm{v}_{0}$
MHT-CET 2020
Dual nature of radiation and Matter

142193 Using Einstein's photoelectric equation, the graph between the K-E.(E) of photoelectrons emitted and the frequency of incident radiation $(v)$ is shown correctly in figure

1 (3)
2 (2)
3 (4)
4 (1)
MHT-CET 2020
Dual nature of radiation and Matter

142194 A metal surface having work function ' $w_{0}$ ' emits photoelectrons when photons of energy ' $E$ ' are incident on it. The electron enters the uniform magnetic field $(B)$ in perpendicular direction and moves in circular path of radius ' $r$ '. Then ' $r$ ' is equal to ( $m$ and e be the mass and charge of electron respectively).

1 $\frac{m\left(E-w_{0}\right)}{e B}$
2 $\frac{\sqrt{\mathrm{m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}}{\mathrm{eB}}$
3 $\frac{2 \mathrm{~m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}{\mathrm{eB}}$
4 $\frac{\sqrt{2 m\left(E-w_{0}\right)}}{e B}$
Shift-II
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Dual nature of radiation and Matter

142191 The following graph represents the variation of photocurrent with anode potential for a metal surface. Here, $I_{1}, I_{2}$ and $I_{3}$ represents intensities and $\gamma_{1}, \gamma_{2}, \gamma_{3}$ represent frequency for curves 1,2 and 3 respectively, then :

1 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{2}$
2 $\gamma_{1}=\gamma_{3}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{3}$
3 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1}=\mathrm{I}_{2}$
4 $\gamma_{1}=\gamma_{2}$ and $I_{1}=I_{3}$
Karnataka CET-2020
Dual nature of radiation and Matter

142192 The graph of stopping potential $\left(V_{s}\right)$ against frequency $(v)$ of incident radiation is plotted for two different metals ' $P$ ' and ' $Q$ ' as shown in the graph. $\phi_{\mathrm{p}}$ and $\phi_{\mathrm{Q}}$ are work functions of $\mathrm{P}$ and $Q$ respectively, then

1 $\phi_{\mathrm{P}}>\phi_{\mathrm{Q}}$
2 $\phi_{\mathrm{P}} \lt \phi_{\mathrm{Q}}$
3 $\phi_{\mathrm{P}}=\phi_{\mathrm{Q}}$
4 $\mathrm{v}_{0}^{\prime} \lt \mathrm{v}_{0}$
MHT-CET 2020
Dual nature of radiation and Matter

142193 Using Einstein's photoelectric equation, the graph between the K-E.(E) of photoelectrons emitted and the frequency of incident radiation $(v)$ is shown correctly in figure

1 (3)
2 (2)
3 (4)
4 (1)
MHT-CET 2020
Dual nature of radiation and Matter

142194 A metal surface having work function ' $w_{0}$ ' emits photoelectrons when photons of energy ' $E$ ' are incident on it. The electron enters the uniform magnetic field $(B)$ in perpendicular direction and moves in circular path of radius ' $r$ '. Then ' $r$ ' is equal to ( $m$ and e be the mass and charge of electron respectively).

1 $\frac{m\left(E-w_{0}\right)}{e B}$
2 $\frac{\sqrt{\mathrm{m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}}{\mathrm{eB}}$
3 $\frac{2 \mathrm{~m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}{\mathrm{eB}}$
4 $\frac{\sqrt{2 m\left(E-w_{0}\right)}}{e B}$
Shift-II
NEET DIGITAL LIBRARY
Dual nature of radiation and Matter

142191 The following graph represents the variation of photocurrent with anode potential for a metal surface. Here, $I_{1}, I_{2}$ and $I_{3}$ represents intensities and $\gamma_{1}, \gamma_{2}, \gamma_{3}$ represent frequency for curves 1,2 and 3 respectively, then :

1 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{2}$
2 $\gamma_{1}=\gamma_{3}$ and $\mathrm{I}_{1} \neq \mathrm{I}_{3}$
3 $\gamma_{1}=\gamma_{2}$ and $\mathrm{I}_{1}=\mathrm{I}_{2}$
4 $\gamma_{1}=\gamma_{2}$ and $I_{1}=I_{3}$
Karnataka CET-2020
Dual nature of radiation and Matter

142192 The graph of stopping potential $\left(V_{s}\right)$ against frequency $(v)$ of incident radiation is plotted for two different metals ' $P$ ' and ' $Q$ ' as shown in the graph. $\phi_{\mathrm{p}}$ and $\phi_{\mathrm{Q}}$ are work functions of $\mathrm{P}$ and $Q$ respectively, then

1 $\phi_{\mathrm{P}}>\phi_{\mathrm{Q}}$
2 $\phi_{\mathrm{P}} \lt \phi_{\mathrm{Q}}$
3 $\phi_{\mathrm{P}}=\phi_{\mathrm{Q}}$
4 $\mathrm{v}_{0}^{\prime} \lt \mathrm{v}_{0}$
MHT-CET 2020
Dual nature of radiation and Matter

142193 Using Einstein's photoelectric equation, the graph between the K-E.(E) of photoelectrons emitted and the frequency of incident radiation $(v)$ is shown correctly in figure

1 (3)
2 (2)
3 (4)
4 (1)
MHT-CET 2020
Dual nature of radiation and Matter

142194 A metal surface having work function ' $w_{0}$ ' emits photoelectrons when photons of energy ' $E$ ' are incident on it. The electron enters the uniform magnetic field $(B)$ in perpendicular direction and moves in circular path of radius ' $r$ '. Then ' $r$ ' is equal to ( $m$ and e be the mass and charge of electron respectively).

1 $\frac{m\left(E-w_{0}\right)}{e B}$
2 $\frac{\sqrt{\mathrm{m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}}{\mathrm{eB}}$
3 $\frac{2 \mathrm{~m}\left(\mathrm{E}-\mathrm{w}_{0}\right)}{\mathrm{eB}}$
4 $\frac{\sqrt{2 m\left(E-w_{0}\right)}}{e B}$
Shift-II
Join With Us for More Updates