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Potassium and caesium are more commonly used in photoelectric effect experiments compared to lithium because they have lower work functions, making it easier to release electrons when light is shone on them. This results in a more pronounced and easily measurable photoelectric effect. Additionally, potassium and caesium have larger atomic sizes, which means their electrons are further away from the nucleus, facilitating the ejection of electrons in the photoelectric effect.
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Why caesium can be used in photoelectric cell while lithium cannot be?
Caesium has a lower work function than lithium, meaning it requires less energy to release electrons. This makes it more efficient in producing a photoelectric effect. Additionally, caesium's longer wavelength of light sensitivity allows it to be better suited for certain applications compared to lithium.
Why cesium and potassium used in photoelectric effect?
The ionization enthalpy of K and Cs is less than that of Li and therefore these metals easily lose electrons on exposure to light than lithium.That's the reason potassium and cesium are used in photoelectric cells rather than Cs.
Will indium display the photoelectric effect with UV light?
Yes, indium can display the photoelectric effect when exposed to UV light. When UV light shines on a metal surface like indium, electrons are ejected from the surface due to the photon energy exceeding the work function of the metal. This phenomenon is known as the photoelectric effect.
Will Lithium Sodium or Potassium react the fastest?
As it has more electron shells between the nucleus and the outermost electron, and as group 1 elements react by losing there outermost electron, the more shielding effect between the nucleus and the electron, the smaller the force of attraction on the electron, so the more readily it will react as less energy is needed to break the bond between the outer electron and the positive nucleus.
Why is potassium chloride good conductor of electricity?
potassium atom has a bigger atomic radius and its valence electron located at 4th shell with more shielding effect so lower ionization energy required so more free electrons so better conductivity for electricity
Why caesium can be used in photoelectric cell while lithium cannot be?
Caesium has a lower work function than lithium, meaning it requires less energy to release electrons. This makes it more efficient in producing a photoelectric effect. Additionally, caesium's longer wavelength of light sensitivity allows it to be better suited for certain applications compared to lithium.
Which are the metals which show and do not show photoelectric effect?
All metals will emit a photoelectric effect. However, alkali metals do so in the visible light spectrum, while other metals do so in near-ultraviolet light.The alkali metals are: Lithium (Li), Sodium (Na), Potassium (K), Rubidium (Rb), Caesium (Cs), and Francium (Fr).
Why cesium and potassium used in photoelectric effect?
The ionization enthalpy of K and Cs is less than that of Li and therefore these metals easily lose electrons on exposure to light than lithium.That's the reason potassium and cesium are used in photoelectric cells rather than Cs.
What metals is particularly sensitive to the photoelectric effect A. potassium B. iron C. zinc D.copper?
potassium
Match the experimental conditions applied to the photoelectric effect observed.?
conditions of photoelectric effect
What percents of xrays are produced in a photoelectric effect?
The amount of xrays produced in a photoelectric effect varies. . . . alot.
Which phenomenon demonstrates a particle nature of light?
The photoelectric effect demonstrates the particle nature of light. In this phenomenon, light is shown to behave like a stream of particles (photons) by ejecting electrons from a material when it hits the surface.
Can photoelectric effect done in vaccum?
Certainly, of course, and you betcha. The presence of air has no function or involvement in the photoelectric effect.
Is reverse process of photoelectric effect is zeeman effect?
No, the reverse process of the photoelectric effect is not the Zeeman effect. The Zeeman effect is the splitting of spectral lines in the presence of a magnetic field, while the photoelectric effect is the emission of electrons from a material when exposed to light. They are two distinct phenomena in physics.
Do radio and microwaves produce photoelectric effect?
No, radio waves and microwaves do not produce the photoelectric effect. The photoelectric effect is the phenomenon where electrons are emitted from a material when it is exposed to light of sufficient frequency (typically ultraviolet or higher). Radio waves and microwaves have lower frequencies and energies than light, so they are not capable of causing the photoelectric effect.
Why does other Group 1A ions such as sodium and potassium which are normally present in substantial concentrations in the body do not have the same effect as lithium ions?
ion size
What type of energy uses the photoelectric effect?
Solar energy uses the photoelectric effect to convert light energy into electrical energy. When sunlight shines on a solar panel, the photoelectric effect causes electrons to be released, creating an electric current.
