From the calculation, the wavelength of the waves is about 264 nm and belongs to the ultraviolet spectrum.
<h3>What is photoelectric effect?</h3>
The term photoelectric effect can be used to describe the loss of electron from the surface of a metal. Given that; KE = E - W, where;
KE = kinetic energy of the emitted photoelectron
E = energy of the photon
W = work function of the metal
![2= E - 2.71\\E = 2 + 2.71\\E = 4.71ev or 7.5 * 10^-19 J](https://tex.z-dn.net/?f=2%3D%20E%20-%202.71%5C%5CE%20%3D%202%20%2B%202.71%5C%5CE%20%3D%204.71ev%20or%207.5%20%2A%2010%5E-19%20J)
λ= hc/E
λ= ![6.6 * 10^-34 * 3 * 10^8/7.5 * 10^-19](https://tex.z-dn.net/?f=6.6%20%2A%2010%5E-34%20%2A%203%20%2A%2010%5E8%2F7.5%20%2A%2010%5E-19)
λ=
or 264 nm
Learn more about wavelength:brainly.com/question/13533093
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Answer:
The combination, L = I / (m * R) , that appears in the equation for the period of a physical pendulum, is called radius of oscillations
Hope this helps :]
This is an example of classical conditioning, and the library is a conditioned stimulus.
The idea of classical conditioning was first put forward by the man Ivan Pavlov, a Russian physiologist.
In his studies, he was able to successfully associate a once neutral stimulus to a conditioned response. The neutral stimulus hitherto does not produce the expected response until after conditioning has taken place.
In this case, the library was a neutral stimulus. When it becomes associated with a bakery, it provokes the conditioned response of hunger any time you go to the library.
The library is now a conditioned stimulus.
Learn more: brainly.com/question/18080270
Answer:
D. When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.
Explanation: