142053
Einstein was awarded the Nobel prize for his work on
1 photoelectric effect
2 special theory of relativity
3 brownian motion
4 general theory of relativity
5 quantum theory
Explanation:
A Albert Einstein won the Nobel Prize for physics in 1921 for his work on the photoelectric effect. The photoelectric effect is a phenomenon is which, when light shines on a metal surface, electrons are ejected from it. It provided important evidence that light is quantised or carried in discrete packets. Incident light Emitted electrons Metal surface
Kerala CEE -2018
Dual nature of radiation and Matter
142064
Photoelectric effect supports quantum nature of light because
1 $(\mathrm{A})(\mathrm{B})(\mathrm{C})$
2 (A) (B) (D)
3 $(\mathrm{B})(\mathrm{C})(\mathrm{D})$
4 $(\mathrm{A})(\mathrm{C})(\mathrm{D})$
Explanation:
D Photo electric effect supports quantum nature of light because. (i) There is minimum frequency of light below which on photoelectric are emitted. (ii) Maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity. (iii) Even when metal surface is faintly illuminated the photoelectric leave the surface immediately.
CG PET- 2008
Dual nature of radiation and Matter
142068
Light of frequency $v$ falls on material of threshold frequency $v_{0}$. Maximum kinetic energy of emitted electron is proportional to:
1 $v-v_{0}$
2 $\mathrm{v}$
3 $\sqrt{v-v_{0}}$
4 $v_{\mathrm{o}}$
Explanation:
A According to the Einstein photoelectric equation - $\therefore \quad(\mathrm{KE})_{\max }=\mathrm{E}-\phi_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h} v-\mathrm{h} v_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h}\left(v-v_{\mathrm{o}}\right)$ So, $\quad(\mathrm{KE})_{\max } \propto v-v_{\mathrm{o}}$
JIPMER-2011
Dual nature of radiation and Matter
142069
The maximum kinetic energy of photoelectrons
1 depends on collector plate
2 is independent of emitter plate material
3 is independent of frequency of incident radiation
4 depends on the frequency of light source and the nature of emitter plate material
5 depends on intensity of incident radiation
Explanation:
D From Einstein photoelectric equation, The maximum KE of the photoelectrons $\mathrm{K} . \mathrm{E}=\mathrm{h} v-\phi_{\mathrm{o}}$ Where, $\mathrm{h}=$ Plank's constant $v=$ Frequency of the incident radiation $\phi_{\mathrm{o}}=$ Work function Thus, the maximum kinetic energy of the photoelectrons depends on the frequency of incident light and nature of the emitter plate material.
Kerala CEE- 2013
Dual nature of radiation and Matter
142071
The threshold wavelength for photoelectric emission from a material is $4800 \AA$, Photoelectrons will be emitted from the material, when it is illuminated with light from a
1 $40 \mathrm{~W}$ blue lamp
2 $40 \mathrm{~W}$ green lamp
3 $100 \mathrm{~W}$ red lamp
4 $100 \mathrm{~W}$ yellow lamp
5 $1000 \mathrm{~W}$ green lamp
Explanation:
A Given The wavelength of blue light is $4800 \AA$ So, photoelectrons will be emitted from the material, when it is illuminated with light from a $40 \mathrm{~W}$ blue lamp.
142053
Einstein was awarded the Nobel prize for his work on
1 photoelectric effect
2 special theory of relativity
3 brownian motion
4 general theory of relativity
5 quantum theory
Explanation:
A Albert Einstein won the Nobel Prize for physics in 1921 for his work on the photoelectric effect. The photoelectric effect is a phenomenon is which, when light shines on a metal surface, electrons are ejected from it. It provided important evidence that light is quantised or carried in discrete packets. Incident light Emitted electrons Metal surface
Kerala CEE -2018
Dual nature of radiation and Matter
142064
Photoelectric effect supports quantum nature of light because
1 $(\mathrm{A})(\mathrm{B})(\mathrm{C})$
2 (A) (B) (D)
3 $(\mathrm{B})(\mathrm{C})(\mathrm{D})$
4 $(\mathrm{A})(\mathrm{C})(\mathrm{D})$
Explanation:
D Photo electric effect supports quantum nature of light because. (i) There is minimum frequency of light below which on photoelectric are emitted. (ii) Maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity. (iii) Even when metal surface is faintly illuminated the photoelectric leave the surface immediately.
CG PET- 2008
Dual nature of radiation and Matter
142068
Light of frequency $v$ falls on material of threshold frequency $v_{0}$. Maximum kinetic energy of emitted electron is proportional to:
1 $v-v_{0}$
2 $\mathrm{v}$
3 $\sqrt{v-v_{0}}$
4 $v_{\mathrm{o}}$
Explanation:
A According to the Einstein photoelectric equation - $\therefore \quad(\mathrm{KE})_{\max }=\mathrm{E}-\phi_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h} v-\mathrm{h} v_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h}\left(v-v_{\mathrm{o}}\right)$ So, $\quad(\mathrm{KE})_{\max } \propto v-v_{\mathrm{o}}$
JIPMER-2011
Dual nature of radiation and Matter
142069
The maximum kinetic energy of photoelectrons
1 depends on collector plate
2 is independent of emitter plate material
3 is independent of frequency of incident radiation
4 depends on the frequency of light source and the nature of emitter plate material
5 depends on intensity of incident radiation
Explanation:
D From Einstein photoelectric equation, The maximum KE of the photoelectrons $\mathrm{K} . \mathrm{E}=\mathrm{h} v-\phi_{\mathrm{o}}$ Where, $\mathrm{h}=$ Plank's constant $v=$ Frequency of the incident radiation $\phi_{\mathrm{o}}=$ Work function Thus, the maximum kinetic energy of the photoelectrons depends on the frequency of incident light and nature of the emitter plate material.
Kerala CEE- 2013
Dual nature of radiation and Matter
142071
The threshold wavelength for photoelectric emission from a material is $4800 \AA$, Photoelectrons will be emitted from the material, when it is illuminated with light from a
1 $40 \mathrm{~W}$ blue lamp
2 $40 \mathrm{~W}$ green lamp
3 $100 \mathrm{~W}$ red lamp
4 $100 \mathrm{~W}$ yellow lamp
5 $1000 \mathrm{~W}$ green lamp
Explanation:
A Given The wavelength of blue light is $4800 \AA$ So, photoelectrons will be emitted from the material, when it is illuminated with light from a $40 \mathrm{~W}$ blue lamp.
NEET Test Series from KOTA - 10 Papers In MS WORD
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Dual nature of radiation and Matter
142053
Einstein was awarded the Nobel prize for his work on
1 photoelectric effect
2 special theory of relativity
3 brownian motion
4 general theory of relativity
5 quantum theory
Explanation:
A Albert Einstein won the Nobel Prize for physics in 1921 for his work on the photoelectric effect. The photoelectric effect is a phenomenon is which, when light shines on a metal surface, electrons are ejected from it. It provided important evidence that light is quantised or carried in discrete packets. Incident light Emitted electrons Metal surface
Kerala CEE -2018
Dual nature of radiation and Matter
142064
Photoelectric effect supports quantum nature of light because
1 $(\mathrm{A})(\mathrm{B})(\mathrm{C})$
2 (A) (B) (D)
3 $(\mathrm{B})(\mathrm{C})(\mathrm{D})$
4 $(\mathrm{A})(\mathrm{C})(\mathrm{D})$
Explanation:
D Photo electric effect supports quantum nature of light because. (i) There is minimum frequency of light below which on photoelectric are emitted. (ii) Maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity. (iii) Even when metal surface is faintly illuminated the photoelectric leave the surface immediately.
CG PET- 2008
Dual nature of radiation and Matter
142068
Light of frequency $v$ falls on material of threshold frequency $v_{0}$. Maximum kinetic energy of emitted electron is proportional to:
1 $v-v_{0}$
2 $\mathrm{v}$
3 $\sqrt{v-v_{0}}$
4 $v_{\mathrm{o}}$
Explanation:
A According to the Einstein photoelectric equation - $\therefore \quad(\mathrm{KE})_{\max }=\mathrm{E}-\phi_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h} v-\mathrm{h} v_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h}\left(v-v_{\mathrm{o}}\right)$ So, $\quad(\mathrm{KE})_{\max } \propto v-v_{\mathrm{o}}$
JIPMER-2011
Dual nature of radiation and Matter
142069
The maximum kinetic energy of photoelectrons
1 depends on collector plate
2 is independent of emitter plate material
3 is independent of frequency of incident radiation
4 depends on the frequency of light source and the nature of emitter plate material
5 depends on intensity of incident radiation
Explanation:
D From Einstein photoelectric equation, The maximum KE of the photoelectrons $\mathrm{K} . \mathrm{E}=\mathrm{h} v-\phi_{\mathrm{o}}$ Where, $\mathrm{h}=$ Plank's constant $v=$ Frequency of the incident radiation $\phi_{\mathrm{o}}=$ Work function Thus, the maximum kinetic energy of the photoelectrons depends on the frequency of incident light and nature of the emitter plate material.
Kerala CEE- 2013
Dual nature of radiation and Matter
142071
The threshold wavelength for photoelectric emission from a material is $4800 \AA$, Photoelectrons will be emitted from the material, when it is illuminated with light from a
1 $40 \mathrm{~W}$ blue lamp
2 $40 \mathrm{~W}$ green lamp
3 $100 \mathrm{~W}$ red lamp
4 $100 \mathrm{~W}$ yellow lamp
5 $1000 \mathrm{~W}$ green lamp
Explanation:
A Given The wavelength of blue light is $4800 \AA$ So, photoelectrons will be emitted from the material, when it is illuminated with light from a $40 \mathrm{~W}$ blue lamp.
142053
Einstein was awarded the Nobel prize for his work on
1 photoelectric effect
2 special theory of relativity
3 brownian motion
4 general theory of relativity
5 quantum theory
Explanation:
A Albert Einstein won the Nobel Prize for physics in 1921 for his work on the photoelectric effect. The photoelectric effect is a phenomenon is which, when light shines on a metal surface, electrons are ejected from it. It provided important evidence that light is quantised or carried in discrete packets. Incident light Emitted electrons Metal surface
Kerala CEE -2018
Dual nature of radiation and Matter
142064
Photoelectric effect supports quantum nature of light because
1 $(\mathrm{A})(\mathrm{B})(\mathrm{C})$
2 (A) (B) (D)
3 $(\mathrm{B})(\mathrm{C})(\mathrm{D})$
4 $(\mathrm{A})(\mathrm{C})(\mathrm{D})$
Explanation:
D Photo electric effect supports quantum nature of light because. (i) There is minimum frequency of light below which on photoelectric are emitted. (ii) Maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity. (iii) Even when metal surface is faintly illuminated the photoelectric leave the surface immediately.
CG PET- 2008
Dual nature of radiation and Matter
142068
Light of frequency $v$ falls on material of threshold frequency $v_{0}$. Maximum kinetic energy of emitted electron is proportional to:
1 $v-v_{0}$
2 $\mathrm{v}$
3 $\sqrt{v-v_{0}}$
4 $v_{\mathrm{o}}$
Explanation:
A According to the Einstein photoelectric equation - $\therefore \quad(\mathrm{KE})_{\max }=\mathrm{E}-\phi_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h} v-\mathrm{h} v_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h}\left(v-v_{\mathrm{o}}\right)$ So, $\quad(\mathrm{KE})_{\max } \propto v-v_{\mathrm{o}}$
JIPMER-2011
Dual nature of radiation and Matter
142069
The maximum kinetic energy of photoelectrons
1 depends on collector plate
2 is independent of emitter plate material
3 is independent of frequency of incident radiation
4 depends on the frequency of light source and the nature of emitter plate material
5 depends on intensity of incident radiation
Explanation:
D From Einstein photoelectric equation, The maximum KE of the photoelectrons $\mathrm{K} . \mathrm{E}=\mathrm{h} v-\phi_{\mathrm{o}}$ Where, $\mathrm{h}=$ Plank's constant $v=$ Frequency of the incident radiation $\phi_{\mathrm{o}}=$ Work function Thus, the maximum kinetic energy of the photoelectrons depends on the frequency of incident light and nature of the emitter plate material.
Kerala CEE- 2013
Dual nature of radiation and Matter
142071
The threshold wavelength for photoelectric emission from a material is $4800 \AA$, Photoelectrons will be emitted from the material, when it is illuminated with light from a
1 $40 \mathrm{~W}$ blue lamp
2 $40 \mathrm{~W}$ green lamp
3 $100 \mathrm{~W}$ red lamp
4 $100 \mathrm{~W}$ yellow lamp
5 $1000 \mathrm{~W}$ green lamp
Explanation:
A Given The wavelength of blue light is $4800 \AA$ So, photoelectrons will be emitted from the material, when it is illuminated with light from a $40 \mathrm{~W}$ blue lamp.
142053
Einstein was awarded the Nobel prize for his work on
1 photoelectric effect
2 special theory of relativity
3 brownian motion
4 general theory of relativity
5 quantum theory
Explanation:
A Albert Einstein won the Nobel Prize for physics in 1921 for his work on the photoelectric effect. The photoelectric effect is a phenomenon is which, when light shines on a metal surface, electrons are ejected from it. It provided important evidence that light is quantised or carried in discrete packets. Incident light Emitted electrons Metal surface
Kerala CEE -2018
Dual nature of radiation and Matter
142064
Photoelectric effect supports quantum nature of light because
1 $(\mathrm{A})(\mathrm{B})(\mathrm{C})$
2 (A) (B) (D)
3 $(\mathrm{B})(\mathrm{C})(\mathrm{D})$
4 $(\mathrm{A})(\mathrm{C})(\mathrm{D})$
Explanation:
D Photo electric effect supports quantum nature of light because. (i) There is minimum frequency of light below which on photoelectric are emitted. (ii) Maximum kinetic energy of photoelectrons depends only on the frequency of light and not on its intensity. (iii) Even when metal surface is faintly illuminated the photoelectric leave the surface immediately.
CG PET- 2008
Dual nature of radiation and Matter
142068
Light of frequency $v$ falls on material of threshold frequency $v_{0}$. Maximum kinetic energy of emitted electron is proportional to:
1 $v-v_{0}$
2 $\mathrm{v}$
3 $\sqrt{v-v_{0}}$
4 $v_{\mathrm{o}}$
Explanation:
A According to the Einstein photoelectric equation - $\therefore \quad(\mathrm{KE})_{\max }=\mathrm{E}-\phi_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h} v-\mathrm{h} v_{\mathrm{o}}$ $(\mathrm{KE})_{\max }=\mathrm{h}\left(v-v_{\mathrm{o}}\right)$ So, $\quad(\mathrm{KE})_{\max } \propto v-v_{\mathrm{o}}$
JIPMER-2011
Dual nature of radiation and Matter
142069
The maximum kinetic energy of photoelectrons
1 depends on collector plate
2 is independent of emitter plate material
3 is independent of frequency of incident radiation
4 depends on the frequency of light source and the nature of emitter plate material
5 depends on intensity of incident radiation
Explanation:
D From Einstein photoelectric equation, The maximum KE of the photoelectrons $\mathrm{K} . \mathrm{E}=\mathrm{h} v-\phi_{\mathrm{o}}$ Where, $\mathrm{h}=$ Plank's constant $v=$ Frequency of the incident radiation $\phi_{\mathrm{o}}=$ Work function Thus, the maximum kinetic energy of the photoelectrons depends on the frequency of incident light and nature of the emitter plate material.
Kerala CEE- 2013
Dual nature of radiation and Matter
142071
The threshold wavelength for photoelectric emission from a material is $4800 \AA$, Photoelectrons will be emitted from the material, when it is illuminated with light from a
1 $40 \mathrm{~W}$ blue lamp
2 $40 \mathrm{~W}$ green lamp
3 $100 \mathrm{~W}$ red lamp
4 $100 \mathrm{~W}$ yellow lamp
5 $1000 \mathrm{~W}$ green lamp
Explanation:
A Given The wavelength of blue light is $4800 \AA$ So, photoelectrons will be emitted from the material, when it is illuminated with light from a $40 \mathrm{~W}$ blue lamp.
