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

142210 Light of wavelength $4000 \AA$ is incident on a metal plate whose work function is $2 \mathrm{eV}$. What is maximum kinetic energy of emitted photoelectron?

1 $0.5 \mathrm{eV}$
2 $1.1 \mathrm{eV}$
3 $2.0 \mathrm{eV}$
4 $1.5 \mathrm{eV}$
AIIMS-2002
Dual nature of radiation and Matter

142211 Photons of energy $1 \mathrm{eV}$ and $2.5 \mathrm{eV}$ successively illuminated a metal whose work function is 0.5 $\mathrm{eV}$. The ratio of maximum speeds of emitted electron is

1 $1: 3$
2 $1: 2$
3 $3: 1$
4 $2: 1$
BCECE-2010
Dual nature of radiation and Matter

142220 The work function of a substance is $4.0 \mathrm{eV}$. The longest wavelength of light that can cause photo-emission from this substance is approximately $\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)[1 \mathrm{eV}=1.6 \times$ $10^{-19} \mathrm{~J}$

1 $540 \mathrm{~nm}$
2 $400 \mathrm{~nm}$
3 $220 \mathrm{~nm}$
4 $310 \mathrm{~nm}$
NEET (Odisha) - 2019
Dual nature of radiation and Matter

142221 The energy of a photon having frequency ' $v$ ' is $\mathrm{E}=\mathrm{h} v$ and the momentum of the photon having wavelength ' $\lambda$ 'is $p=h / \lambda$. From the statement, one may conclude that the wave velocity of light is equal to

1 Ep
2 $\frac{E}{p}$
3 $\left(\frac{E}{p}\right)^{2}$
4 $\sqrt{\frac{E}{p}}$
MHT-CET 2019
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Dual nature of radiation and Matter

142210 Light of wavelength $4000 \AA$ is incident on a metal plate whose work function is $2 \mathrm{eV}$. What is maximum kinetic energy of emitted photoelectron?

1 $0.5 \mathrm{eV}$
2 $1.1 \mathrm{eV}$
3 $2.0 \mathrm{eV}$
4 $1.5 \mathrm{eV}$
AIIMS-2002
Dual nature of radiation and Matter

142211 Photons of energy $1 \mathrm{eV}$ and $2.5 \mathrm{eV}$ successively illuminated a metal whose work function is 0.5 $\mathrm{eV}$. The ratio of maximum speeds of emitted electron is

1 $1: 3$
2 $1: 2$
3 $3: 1$
4 $2: 1$
BCECE-2010
Dual nature of radiation and Matter

142220 The work function of a substance is $4.0 \mathrm{eV}$. The longest wavelength of light that can cause photo-emission from this substance is approximately $\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)[1 \mathrm{eV}=1.6 \times$ $10^{-19} \mathrm{~J}$

1 $540 \mathrm{~nm}$
2 $400 \mathrm{~nm}$
3 $220 \mathrm{~nm}$
4 $310 \mathrm{~nm}$
NEET (Odisha) - 2019
Dual nature of radiation and Matter

142221 The energy of a photon having frequency ' $v$ ' is $\mathrm{E}=\mathrm{h} v$ and the momentum of the photon having wavelength ' $\lambda$ 'is $p=h / \lambda$. From the statement, one may conclude that the wave velocity of light is equal to

1 Ep
2 $\frac{E}{p}$
3 $\left(\frac{E}{p}\right)^{2}$
4 $\sqrt{\frac{E}{p}}$
MHT-CET 2019
NEET DIGITAL LIBRARY
Dual nature of radiation and Matter

142210 Light of wavelength $4000 \AA$ is incident on a metal plate whose work function is $2 \mathrm{eV}$. What is maximum kinetic energy of emitted photoelectron?

1 $0.5 \mathrm{eV}$
2 $1.1 \mathrm{eV}$
3 $2.0 \mathrm{eV}$
4 $1.5 \mathrm{eV}$
AIIMS-2002
Dual nature of radiation and Matter

142211 Photons of energy $1 \mathrm{eV}$ and $2.5 \mathrm{eV}$ successively illuminated a metal whose work function is 0.5 $\mathrm{eV}$. The ratio of maximum speeds of emitted electron is

1 $1: 3$
2 $1: 2$
3 $3: 1$
4 $2: 1$
BCECE-2010
Dual nature of radiation and Matter

142220 The work function of a substance is $4.0 \mathrm{eV}$. The longest wavelength of light that can cause photo-emission from this substance is approximately $\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)[1 \mathrm{eV}=1.6 \times$ $10^{-19} \mathrm{~J}$

1 $540 \mathrm{~nm}$
2 $400 \mathrm{~nm}$
3 $220 \mathrm{~nm}$
4 $310 \mathrm{~nm}$
NEET (Odisha) - 2019
Dual nature of radiation and Matter

142221 The energy of a photon having frequency ' $v$ ' is $\mathrm{E}=\mathrm{h} v$ and the momentum of the photon having wavelength ' $\lambda$ 'is $p=h / \lambda$. From the statement, one may conclude that the wave velocity of light is equal to

1 Ep
2 $\frac{E}{p}$
3 $\left(\frac{E}{p}\right)^{2}$
4 $\sqrt{\frac{E}{p}}$
MHT-CET 2019
Join With Us for More Updates
Dual nature of radiation and Matter

142210 Light of wavelength $4000 \AA$ is incident on a metal plate whose work function is $2 \mathrm{eV}$. What is maximum kinetic energy of emitted photoelectron?

1 $0.5 \mathrm{eV}$
2 $1.1 \mathrm{eV}$
3 $2.0 \mathrm{eV}$
4 $1.5 \mathrm{eV}$
AIIMS-2002
Dual nature of radiation and Matter

142211 Photons of energy $1 \mathrm{eV}$ and $2.5 \mathrm{eV}$ successively illuminated a metal whose work function is 0.5 $\mathrm{eV}$. The ratio of maximum speeds of emitted electron is

1 $1: 3$
2 $1: 2$
3 $3: 1$
4 $2: 1$
BCECE-2010
Dual nature of radiation and Matter

142220 The work function of a substance is $4.0 \mathrm{eV}$. The longest wavelength of light that can cause photo-emission from this substance is approximately $\left(\mathrm{h}=6.63 \times 10^{-34} \mathrm{Js}\right)[1 \mathrm{eV}=1.6 \times$ $10^{-19} \mathrm{~J}$

1 $540 \mathrm{~nm}$
2 $400 \mathrm{~nm}$
3 $220 \mathrm{~nm}$
4 $310 \mathrm{~nm}$
NEET (Odisha) - 2019
Dual nature of radiation and Matter

142221 The energy of a photon having frequency ' $v$ ' is $\mathrm{E}=\mathrm{h} v$ and the momentum of the photon having wavelength ' $\lambda$ 'is $p=h / \lambda$. From the statement, one may conclude that the wave velocity of light is equal to

1 Ep
2 $\frac{E}{p}$
3 $\left(\frac{E}{p}\right)^{2}$
4 $\sqrt{\frac{E}{p}}$
MHT-CET 2019
For More Updates join with Us