the figure shows a plot of photocurrent versus anode

The figure shows a plot of photocurrent versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ?
Dual Nature of Matter and Radiation mcq question image

Dual Nature of Matter and Radiation mcq question image

A. Curves $$a$$ and $$b$$ represent incident radiations of different frequencies and different intensities

B. Curves $$a$$ and $$b$$ represent incident radiations of same frequency but of different intensities

C. Curves $$b$$ and $$c$$ represent incident radiations of different frequencies and different intensities

D. Curves $$b$$ and $$c$$ represent incident radiations of same frequency having same intensity

Answer : Curves $$a$$ and $$b$$ represent incident radiations of same frequency but of different intensities

Solution :
Dual Nature of Matter and Radiation mcq solution image

Since in the graph retarding potential is same in graph (a) and (b) and photo current is different so, for curves they have same frequency but different intensity of light.

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Modern Physics >> Dual Nature of Matter and Radiation

Releted Question 1

A particle of mass $$M$$ at rest decays into two particles of masses $${m_1}$$ and $${m_2},$$ having non-zero velocities. The ratio of the de Broglie wavelengths of the particles, $$\frac{{{\lambda _1}}}{{{\lambda _2}}},$$ is

A. $$\frac{{{m_1}}}{{{m_2}}}$$

B. $$\frac{{{m_2}}}{{{m_1}}}$$

C. 1.0

D. $$\frac{{\sqrt {{m_2}} }}{{\sqrt {{m_1}} }}$$

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Releted Question 2

A proton has kinetic energy $$E = 100\,keV$$ which is equal to that of a photon. The wavelength of photon is $${\lambda _2}$$ and that of proton is $${\lambda _1}.$$ The ration of $$\frac{{{\lambda _2}}}{{{\lambda _1}}}$$ is proportional to

A. $${E^2}$$

B. $${E^{\frac{1}{2}}}$$

C. $${E^{ - 1}}$$

D. $${E^{ - \frac{1}{2}}}$$

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Releted Question 3

A beam of electron is used in an YDSE experiment. The slit width is $$d.$$ When the velocity of electron is increased, then

A. no interference is observed

B. fringe width increases

C. fringe width decreases

D. fringe width remains same

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Releted Question 4

Formation of covalent bonds in compounds exhibits

A. wave nature of electron

B. particle nature of electron

C. both wave and particle nature of electron

D. none of these

View Answer

The figure shows a plot of photocurrent versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ?

Releted MCQ Question on
Modern Physics >> Dual Nature of Matter and Radiation

A particle of mass $$M$$ at rest decays into two particles of masses $${m_1}$$ and $${m_2},$$ having non-zero velocities. The ratio of the de Broglie wavelengths of the particles, $$\frac{{{\lambda _1}}}{{{\lambda _2}}},$$ is

A proton has kinetic energy $$E = 100\,keV$$ which is equal to that of a photon. The wavelength of photon is $${\lambda _2}$$ and that of proton is $${\lambda _1}.$$ The ration of $$\frac{{{\lambda _2}}}{{{\lambda _1}}}$$ is proportional to

A beam of electron is used in an YDSE experiment. The slit width is $$d.$$ When the velocity of electron is increased, then

Formation of covalent bonds in compounds exhibits

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Dual Nature of Matter and Radiation

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The figure shows a plot of photocurrent versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ?

Releted MCQ Question on Modern Physics >> Dual Nature of Matter and Radiation

A particle of mass $$M$$ at rest decays into two particles of masses $${m_1}$$ and $${m_2},$$ having non-zero velocities. The ratio of the de Broglie wavelengths of the particles, $$\frac{{{\lambda _1}}}{{{\lambda _2}}},$$ is

A proton has kinetic energy $$E = 100\,keV$$ which is equal to that of a photon. The wavelength of photon is $${\lambda _2}$$ and that of proton is $${\lambda _1}.$$ The ration of $$\frac{{{\lambda _2}}}{{{\lambda _1}}}$$ is proportional to

A beam of electron is used in an YDSE experiment. The slit width is $$d.$$ When the velocity of electron is increased, then

Formation of covalent bonds in compounds exhibits

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