(A) According to Einstein's photoelectric equation,the maximum kinetic energy $(K.E._{max})$ of emitted photoelectrons is given by:$K.E._{max} = h\nu

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Planck's constant,threshold frequency

(A) According to Einstein's photoelectric equation,the maximum kinetic energy $(K.E._{max})$ of emitted photoelectrons is given by:$K.E._{max} = h\nu - \phi_0$Comparing this with the equation of a straight line $y = mx + c$,where $y = K.E._{max}$ and $x = \nu$:$1$. The slope $(m)$ of the graph is equal to Planck's constant $(h)$.$2$. The $X$-axis intercept occurs when $K.E._{max} = 0$,which gives $0 = h\nu_0 - \phi_0$,or $\nu_0 = \phi_0 / h$. This intercept represents the threshold frequency $(\nu_0)$.Therefore,the slope is Planck's constant and the $X$-axis intercept is the threshold frequency.

Class 12 Physics Dual Nature of Radiation and matter Einstein's Photoelectric Equation and Energy Quantum of Radiation

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The graph of maximum kinetic energy $(K.E._{max})$ against the frequency $(
u)$ of incident light is as shown in the figure. The slope of the graph and the intercept on the $X$-axis respectively are:

MHT CET 2020 All MHT CET

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Planck's constant,threshold frequency
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Work function,maximum kinetic energy
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Maximum kinetic energy,threshold frequency
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Planck's constant,work function

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Dual Nature of Radiation and matter

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Einstein's Photoelectric Equation and Energy Quantum of Radiation

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What is the stopping potential when a metal with a work function of $0.6 \ eV$ is illuminated with light of $2 \ eV$ (in $V$)?

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The graph of maximum kinetic energy $(K.E._{max})$ against the frequency $(u)$ of incident light is as shown in the figure. The slope of the graph and the intercept on the $X$-axis respectively are:

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When photons of energy $hv$ fall on a metal plate of work function $W_0$,photoelectrons of maximum kinetic energy $K$ are ejected. If the frequency of the radiation is doubled,the maximum kinetic energy of the ejected photoelectrons will be

$V$ (stopping potential) is plotted against $\frac{1}{\lambda}$,where $\lambda$ is the wavelength of incident radiation,for two metals.

What is the stopping potential when a metal with a work function of $0.6 \ eV$ is illuminated with light of $2 \ eV$ (in $V$)?

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The graph of maximum kinetic energy $(K.E._{max})$ against the frequency $(
u)$ of incident light is as shown in the figure. The slope of the graph and the intercept on the $X$-axis respectively are: