What is the maximum wavelength in nm of light that can eject an electron?

196 nm
When radiation with a wavelength of 141 nm shines on the surface, what is the maximum speed of the ejected electrons? Photoelectric effect problem Page 2 The maximum wavelength for which an electromagnetic wave can eject electrons from a platinum surface is 196 nm.

How do you find the maximum wavelength of electromagnetic radiation?

To find wavelength ( λ ), the equation is manipulated so that λ=cν . What is the wavelength of a electromagnetic wave that has a frequency of 4.95×1014 Hz? Once you have frequency, you can use the first equation c=λ⋅ν to find the wavelength.

What electromagnetic radiation can pass through metal?

Radio waves can penetrate nonconducting materials, such as wood, bricks, and concrete, fairly well. They cannot pass through electrical conductors, such as water or metals. Above ν = 40 MHz, radio waves from deep space can penetrate Earth’s atmosphere.

What is the longest wavelength of light that will eject electrons?

520 nm
3. The longest-wavelength light that causes an electron to be emitted from gaseous lithium atom is 520 nm.

What is the maximum wavelength of light that is needed to free an electron from the surface of potassium metal?

543 nm
You can thus say that in order for an electron to be ejected from the surface of potassium, the incoming photon must have a maximum wavelength of 543 nm . If the wavelength of the incoming photon is longer than this value, then you won’t see an emission of electrons from the surface of the metal.

What is the maximum wavelength of Lyman series?

Assertion (A):In Lyman series of H-spectra, the maximum wavelength of lines is 121.56 nm.

Can photons pass through metal?

Pure metals reflect light but do not transmit it, because they are filled with free electrons. These electrons reradiate the light in the direction opposite from which it arrived (reflection), but they interfere with the light that would proceed in the forward direction, preventing transmission.”

Which of the photon has maximum wavelength?

Now, if you are taking light as only the visible part of the electromagnetic spectrum, then the photon does do have a maximum wavelength. The final part of the visible spectrum, the red light has a maximum wavelength in the range of 700nm.

What is the maximum wavelength of light that is needed to free an electron from the surface of Potasssium metal?