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

142280 The rest energy of an electron is $0.511 \mathrm{MeV}$. The electron is accelerated from rest to a velocity $0.5 \mathrm{c}$. The change in its energy will be

1 $0.026 \mathrm{Me} \mathrm{V}$
2 $0.051 \mathrm{Me} \mathrm{V}$
3 $0.079 \mathrm{Me} \mathrm{V}$
4 $0.105 \mathrm{Me} \mathrm{V}$
Manipal UGET-2011
Dual nature of radiation and Matter

142281 Work function of a substance is $3.3 \mathrm{eV}$. Its threshold frequency is

1 $4 \times 10^{14} \mathrm{~Hz}$
2 $8 \times 10^{14} \mathrm{~Hz}$
3 $16 \times 10^{20} \mathrm{~Hz}$
4 $8 \times 10^{20} \mathrm{~Hz}$
CG PET- 2015
Dual nature of radiation and Matter

142282 The momentum of a photon of energy $1 \mathrm{MeV}$ in $\mathrm{kg} \mathrm{ms}^{-1}$, will be

1 $0.33 \times 10^{6}$
2 $7 \times 10^{-24}$
3 $10^{-22}$
4 $5 \times 10^{-22}$
MHT-CET 2007
Dual nature of radiation and Matter

142285 Silver has a work function of $4.7 \mathrm{eV}$. When ultraviolet light of wavelength $100 \mathrm{~nm}$ is incident on it a potential of $7.7 \mathrm{~V}$ is required to stop the photoelectrons from reaching the collector plate. How much potential will be required to stop photoelectrons, when light of wavelength $200 \mathrm{~nm}$ is incident on it?

1 $15.4 \mathrm{~V}$
2 $2.35 \mathrm{~V}$
3 $3.85 \mathrm{~V}$
4 $1.5 \mathrm{~V}$
VITEEE-2010
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NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Dual nature of radiation and Matter

142280 The rest energy of an electron is $0.511 \mathrm{MeV}$. The electron is accelerated from rest to a velocity $0.5 \mathrm{c}$. The change in its energy will be

1 $0.026 \mathrm{Me} \mathrm{V}$
2 $0.051 \mathrm{Me} \mathrm{V}$
3 $0.079 \mathrm{Me} \mathrm{V}$
4 $0.105 \mathrm{Me} \mathrm{V}$
Manipal UGET-2011
Dual nature of radiation and Matter

142281 Work function of a substance is $3.3 \mathrm{eV}$. Its threshold frequency is

1 $4 \times 10^{14} \mathrm{~Hz}$
2 $8 \times 10^{14} \mathrm{~Hz}$
3 $16 \times 10^{20} \mathrm{~Hz}$
4 $8 \times 10^{20} \mathrm{~Hz}$
CG PET- 2015
Dual nature of radiation and Matter

142282 The momentum of a photon of energy $1 \mathrm{MeV}$ in $\mathrm{kg} \mathrm{ms}^{-1}$, will be

1 $0.33 \times 10^{6}$
2 $7 \times 10^{-24}$
3 $10^{-22}$
4 $5 \times 10^{-22}$
MHT-CET 2007
Dual nature of radiation and Matter

142285 Silver has a work function of $4.7 \mathrm{eV}$. When ultraviolet light of wavelength $100 \mathrm{~nm}$ is incident on it a potential of $7.7 \mathrm{~V}$ is required to stop the photoelectrons from reaching the collector plate. How much potential will be required to stop photoelectrons, when light of wavelength $200 \mathrm{~nm}$ is incident on it?

1 $15.4 \mathrm{~V}$
2 $2.35 \mathrm{~V}$
3 $3.85 \mathrm{~V}$
4 $1.5 \mathrm{~V}$
VITEEE-2010
NEET DIGITAL LIBRARY
Dual nature of radiation and Matter

142280 The rest energy of an electron is $0.511 \mathrm{MeV}$. The electron is accelerated from rest to a velocity $0.5 \mathrm{c}$. The change in its energy will be

1 $0.026 \mathrm{Me} \mathrm{V}$
2 $0.051 \mathrm{Me} \mathrm{V}$
3 $0.079 \mathrm{Me} \mathrm{V}$
4 $0.105 \mathrm{Me} \mathrm{V}$
Manipal UGET-2011
Dual nature of radiation and Matter

142281 Work function of a substance is $3.3 \mathrm{eV}$. Its threshold frequency is

1 $4 \times 10^{14} \mathrm{~Hz}$
2 $8 \times 10^{14} \mathrm{~Hz}$
3 $16 \times 10^{20} \mathrm{~Hz}$
4 $8 \times 10^{20} \mathrm{~Hz}$
CG PET- 2015
Dual nature of radiation and Matter

142282 The momentum of a photon of energy $1 \mathrm{MeV}$ in $\mathrm{kg} \mathrm{ms}^{-1}$, will be

1 $0.33 \times 10^{6}$
2 $7 \times 10^{-24}$
3 $10^{-22}$
4 $5 \times 10^{-22}$
MHT-CET 2007
Dual nature of radiation and Matter

142285 Silver has a work function of $4.7 \mathrm{eV}$. When ultraviolet light of wavelength $100 \mathrm{~nm}$ is incident on it a potential of $7.7 \mathrm{~V}$ is required to stop the photoelectrons from reaching the collector plate. How much potential will be required to stop photoelectrons, when light of wavelength $200 \mathrm{~nm}$ is incident on it?

1 $15.4 \mathrm{~V}$
2 $2.35 \mathrm{~V}$
3 $3.85 \mathrm{~V}$
4 $1.5 \mathrm{~V}$
VITEEE-2010
Join With Us for More Updates
Dual nature of radiation and Matter

142280 The rest energy of an electron is $0.511 \mathrm{MeV}$. The electron is accelerated from rest to a velocity $0.5 \mathrm{c}$. The change in its energy will be

1 $0.026 \mathrm{Me} \mathrm{V}$
2 $0.051 \mathrm{Me} \mathrm{V}$
3 $0.079 \mathrm{Me} \mathrm{V}$
4 $0.105 \mathrm{Me} \mathrm{V}$
Manipal UGET-2011
Dual nature of radiation and Matter

142281 Work function of a substance is $3.3 \mathrm{eV}$. Its threshold frequency is

1 $4 \times 10^{14} \mathrm{~Hz}$
2 $8 \times 10^{14} \mathrm{~Hz}$
3 $16 \times 10^{20} \mathrm{~Hz}$
4 $8 \times 10^{20} \mathrm{~Hz}$
CG PET- 2015
Dual nature of radiation and Matter

142282 The momentum of a photon of energy $1 \mathrm{MeV}$ in $\mathrm{kg} \mathrm{ms}^{-1}$, will be

1 $0.33 \times 10^{6}$
2 $7 \times 10^{-24}$
3 $10^{-22}$
4 $5 \times 10^{-22}$
MHT-CET 2007
Dual nature of radiation and Matter

142285 Silver has a work function of $4.7 \mathrm{eV}$. When ultraviolet light of wavelength $100 \mathrm{~nm}$ is incident on it a potential of $7.7 \mathrm{~V}$ is required to stop the photoelectrons from reaching the collector plate. How much potential will be required to stop photoelectrons, when light of wavelength $200 \mathrm{~nm}$ is incident on it?

1 $15.4 \mathrm{~V}$
2 $2.35 \mathrm{~V}$
3 $3.85 \mathrm{~V}$
4 $1.5 \mathrm{~V}$
VITEEE-2010
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