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

142195 Out of the following graphs, which graph shows the correct variation of maximum kinetic energy (E) of photo electron with intensity of incident radiation (I) ?

1 3
2 2
3 4
4 1
Dual nature of radiation and Matter

142197 If the frequency of incident light falling on a metallic surface is doubled, maximum kinetic energy of emitted photoelectrons

1 increases to slightly more than double
2 becomes twice
3 remains the same
4 decreases to slightly more than double
Dual nature of radiation and Matter

142198 A photoelectric surface is illuminated successively by monochromatic light of wavelength $\lambda$ and $\lambda / 2$. If the maximum kinetic energy is the second case in the second case in 3 times that in first case, the work function of the surface of the material is $(h=$ Planck's constant, $c=$ speed of light)

1 $\frac{\mathrm{hc}}{\lambda}$
2 $\frac{h \mathrm{c}}{2 \lambda}$
3 $\frac{2 \mathrm{hc}}{\lambda}$
4 $\frac{\mathrm{hc}}{3 \lambda}$
Dual nature of radiation and Matter

142199 The graph between maximum kinetic energy and intensity of light in photoelectric effect is plotted. Out of the four graphs A, B, C, D shown in the figure, the correct graph is

1 $\mathrm{B}$
2 $\mathrm{A}$
3 D
4 $\mathrm{C}$
Dual nature of radiation and Matter

142195 Out of the following graphs, which graph shows the correct variation of maximum kinetic energy (E) of photo electron with intensity of incident radiation (I) ?

1 3
2 2
3 4
4 1
Dual nature of radiation and Matter

142197 If the frequency of incident light falling on a metallic surface is doubled, maximum kinetic energy of emitted photoelectrons

1 increases to slightly more than double
2 becomes twice
3 remains the same
4 decreases to slightly more than double
Dual nature of radiation and Matter

142198 A photoelectric surface is illuminated successively by monochromatic light of wavelength $\lambda$ and $\lambda / 2$. If the maximum kinetic energy is the second case in the second case in 3 times that in first case, the work function of the surface of the material is $(h=$ Planck's constant, $c=$ speed of light)

1 $\frac{\mathrm{hc}}{\lambda}$
2 $\frac{h \mathrm{c}}{2 \lambda}$
3 $\frac{2 \mathrm{hc}}{\lambda}$
4 $\frac{\mathrm{hc}}{3 \lambda}$
Dual nature of radiation and Matter

142199 The graph between maximum kinetic energy and intensity of light in photoelectric effect is plotted. Out of the four graphs A, B, C, D shown in the figure, the correct graph is

1 $\mathrm{B}$
2 $\mathrm{A}$
3 D
4 $\mathrm{C}$
Dual nature of radiation and Matter

142195 Out of the following graphs, which graph shows the correct variation of maximum kinetic energy (E) of photo electron with intensity of incident radiation (I) ?

1 3
2 2
3 4
4 1
Dual nature of radiation and Matter

142197 If the frequency of incident light falling on a metallic surface is doubled, maximum kinetic energy of emitted photoelectrons

1 increases to slightly more than double
2 becomes twice
3 remains the same
4 decreases to slightly more than double
Dual nature of radiation and Matter

142198 A photoelectric surface is illuminated successively by monochromatic light of wavelength $\lambda$ and $\lambda / 2$. If the maximum kinetic energy is the second case in the second case in 3 times that in first case, the work function of the surface of the material is $(h=$ Planck's constant, $c=$ speed of light)

1 $\frac{\mathrm{hc}}{\lambda}$
2 $\frac{h \mathrm{c}}{2 \lambda}$
3 $\frac{2 \mathrm{hc}}{\lambda}$
4 $\frac{\mathrm{hc}}{3 \lambda}$
Dual nature of radiation and Matter

142199 The graph between maximum kinetic energy and intensity of light in photoelectric effect is plotted. Out of the four graphs A, B, C, D shown in the figure, the correct graph is

1 $\mathrm{B}$
2 $\mathrm{A}$
3 D
4 $\mathrm{C}$
Dual nature of radiation and Matter

142195 Out of the following graphs, which graph shows the correct variation of maximum kinetic energy (E) of photo electron with intensity of incident radiation (I) ?

1 3
2 2
3 4
4 1
Dual nature of radiation and Matter

142197 If the frequency of incident light falling on a metallic surface is doubled, maximum kinetic energy of emitted photoelectrons

1 increases to slightly more than double
2 becomes twice
3 remains the same
4 decreases to slightly more than double
Dual nature of radiation and Matter

142198 A photoelectric surface is illuminated successively by monochromatic light of wavelength $\lambda$ and $\lambda / 2$. If the maximum kinetic energy is the second case in the second case in 3 times that in first case, the work function of the surface of the material is $(h=$ Planck's constant, $c=$ speed of light)

1 $\frac{\mathrm{hc}}{\lambda}$
2 $\frac{h \mathrm{c}}{2 \lambda}$
3 $\frac{2 \mathrm{hc}}{\lambda}$
4 $\frac{\mathrm{hc}}{3 \lambda}$
Dual nature of radiation and Matter

142199 The graph between maximum kinetic energy and intensity of light in photoelectric effect is plotted. Out of the four graphs A, B, C, D shown in the figure, the correct graph is

1 $\mathrm{B}$
2 $\mathrm{A}$
3 D
4 $\mathrm{C}$
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