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Sagot :
We will decrease the wavelength of light in order to cause electrons to be ejected from the surface of this metal.
We have a Light of a given wavelength that is used to illuminate the surface of a metal, however, no photoelectrons are emitted.
We have to find out what can we do in order to cause electrons to be ejected from the surface of this metal.
What is Photoelectric Effect ?
The emission of electrons from the surface of the metal when the light of specific frequency (greater than the threshold frequency) falls over it is called photoelectric effect.
Light consists of photons. The energy associated with the photons is used to emit out the electrons from the surface of metal. We know that - Energy can neither be created nor be destroyed and it can only be transferred from one body to another. Hence, the energy of these moving photons is used to emit electrons from the metal surface. The energy associated with the photon is given by -
E = hμ
Where - μ is the frequency of light an h is Planck's constant.
Now, we can see that the energy of the photon is directly proportional to the frequency of light. The minimum frequency required to eject the electron from the metal surface is called Threshold frequency. Thus, we can emit the electron from the metal surface by using the light of frequency greater than threshold frequency.
Hence, we will increase the frequency of light in order to cause electrons to be ejected from the surface of this metal
To solve more questions on Photoelectric Effect, visit the link below -
brainly.com/question/9260704
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