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

142178 Two materials $A$ and $B$ having respective work functions $3 \mathrm{eV}$ and $4 \mathrm{eV}$ are emitting photoelectrons of same maximum kinetic energy of $1 \mathrm{eV}$. If the wavelength of incident light on $A$ is $500 \mathrm{~nm}$, then that of light incident on $B$ is

1 $400 \mathrm{~nm}$
2 $300 \mathrm{~nm}$
3 $350 \mathrm{~nm}$
4 $600 \mathrm{~nm}$
5 $250 \mathrm{~nm}$
Kerala CEE 2021
Dual nature of radiation and Matter

142179 What is the dynamic mass of a photon of wavelength $1 \stackrel{\circ}{\mathbf{A}}$

1 $2.21 \times 10^{-32} \mathrm{~kg}$
2 $6.62 \times 10^{-20} \mathrm{~kg}$
3 $2.21 \times 10^{-32} \mathrm{~kg}$
4 $29.86 \times 10^{-32} \mathrm{~kg}$
Shift-I
Dual nature of radiation and Matter

142180 1 amu is

1 $931 \mathrm{KeV}$
2 $931 \mathrm{eV}$
3 $931 \mathrm{MeV}$
4 $9.31 \mathrm{MeV}$
Shift-I
Dual nature of radiation and Matter

142181 If a photocell is illuminated with a radiation of $1240 \AA$, the stopping potential is found to be $8 \mathrm{~V}$ : then the work function of the emitter and the threshold Wavelength are:

1 $2 \mathrm{eV}, 2000 \AA$
2 $2 \mathrm{eV}, 6200 \AA$
3 $2 \mathrm{eV}, 2480 \AA$
4 $3 \mathrm{eV}, 6200 \AA$
Shift-II
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Dual nature of radiation and Matter

142178 Two materials $A$ and $B$ having respective work functions $3 \mathrm{eV}$ and $4 \mathrm{eV}$ are emitting photoelectrons of same maximum kinetic energy of $1 \mathrm{eV}$. If the wavelength of incident light on $A$ is $500 \mathrm{~nm}$, then that of light incident on $B$ is

1 $400 \mathrm{~nm}$
2 $300 \mathrm{~nm}$
3 $350 \mathrm{~nm}$
4 $600 \mathrm{~nm}$
5 $250 \mathrm{~nm}$
Kerala CEE 2021
Dual nature of radiation and Matter

142179 What is the dynamic mass of a photon of wavelength $1 \stackrel{\circ}{\mathbf{A}}$

1 $2.21 \times 10^{-32} \mathrm{~kg}$
2 $6.62 \times 10^{-20} \mathrm{~kg}$
3 $2.21 \times 10^{-32} \mathrm{~kg}$
4 $29.86 \times 10^{-32} \mathrm{~kg}$
Shift-I
Dual nature of radiation and Matter

142180 1 amu is

1 $931 \mathrm{KeV}$
2 $931 \mathrm{eV}$
3 $931 \mathrm{MeV}$
4 $9.31 \mathrm{MeV}$
Shift-I
Dual nature of radiation and Matter

142181 If a photocell is illuminated with a radiation of $1240 \AA$, the stopping potential is found to be $8 \mathrm{~V}$ : then the work function of the emitter and the threshold Wavelength are:

1 $2 \mathrm{eV}, 2000 \AA$
2 $2 \mathrm{eV}, 6200 \AA$
3 $2 \mathrm{eV}, 2480 \AA$
4 $3 \mathrm{eV}, 6200 \AA$
Shift-II
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Dual nature of radiation and Matter

142178 Two materials $A$ and $B$ having respective work functions $3 \mathrm{eV}$ and $4 \mathrm{eV}$ are emitting photoelectrons of same maximum kinetic energy of $1 \mathrm{eV}$. If the wavelength of incident light on $A$ is $500 \mathrm{~nm}$, then that of light incident on $B$ is

1 $400 \mathrm{~nm}$
2 $300 \mathrm{~nm}$
3 $350 \mathrm{~nm}$
4 $600 \mathrm{~nm}$
5 $250 \mathrm{~nm}$
Kerala CEE 2021
Dual nature of radiation and Matter

142179 What is the dynamic mass of a photon of wavelength $1 \stackrel{\circ}{\mathbf{A}}$

1 $2.21 \times 10^{-32} \mathrm{~kg}$
2 $6.62 \times 10^{-20} \mathrm{~kg}$
3 $2.21 \times 10^{-32} \mathrm{~kg}$
4 $29.86 \times 10^{-32} \mathrm{~kg}$
Shift-I
Dual nature of radiation and Matter

142180 1 amu is

1 $931 \mathrm{KeV}$
2 $931 \mathrm{eV}$
3 $931 \mathrm{MeV}$
4 $9.31 \mathrm{MeV}$
Shift-I
Dual nature of radiation and Matter

142181 If a photocell is illuminated with a radiation of $1240 \AA$, the stopping potential is found to be $8 \mathrm{~V}$ : then the work function of the emitter and the threshold Wavelength are:

1 $2 \mathrm{eV}, 2000 \AA$
2 $2 \mathrm{eV}, 6200 \AA$
3 $2 \mathrm{eV}, 2480 \AA$
4 $3 \mathrm{eV}, 6200 \AA$
Shift-II
For More Updates join with Us
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Dual nature of radiation and Matter

142178 Two materials $A$ and $B$ having respective work functions $3 \mathrm{eV}$ and $4 \mathrm{eV}$ are emitting photoelectrons of same maximum kinetic energy of $1 \mathrm{eV}$. If the wavelength of incident light on $A$ is $500 \mathrm{~nm}$, then that of light incident on $B$ is

1 $400 \mathrm{~nm}$
2 $300 \mathrm{~nm}$
3 $350 \mathrm{~nm}$
4 $600 \mathrm{~nm}$
5 $250 \mathrm{~nm}$
Kerala CEE 2021
Dual nature of radiation and Matter

142179 What is the dynamic mass of a photon of wavelength $1 \stackrel{\circ}{\mathbf{A}}$

1 $2.21 \times 10^{-32} \mathrm{~kg}$
2 $6.62 \times 10^{-20} \mathrm{~kg}$
3 $2.21 \times 10^{-32} \mathrm{~kg}$
4 $29.86 \times 10^{-32} \mathrm{~kg}$
Shift-I
Dual nature of radiation and Matter

142180 1 amu is

1 $931 \mathrm{KeV}$
2 $931 \mathrm{eV}$
3 $931 \mathrm{MeV}$
4 $9.31 \mathrm{MeV}$
Shift-I
Dual nature of radiation and Matter

142181 If a photocell is illuminated with a radiation of $1240 \AA$, the stopping potential is found to be $8 \mathrm{~V}$ : then the work function of the emitter and the threshold Wavelength are:

1 $2 \mathrm{eV}, 2000 \AA$
2 $2 \mathrm{eV}, 6200 \AA$
3 $2 \mathrm{eV}, 2480 \AA$
4 $3 \mathrm{eV}, 6200 \AA$
Shift-II
NEET DIGITAL LIBRARY