Question

When electromagnetic radiation of wavelength 300nm falls on the surface of sodium electrons are emitted with?

Answer 1

Given Question,

When electromagnetic radiation of wavelength 300nm falls on the surface of sodium, electrons are emitted with a kinetic energy of 1.68 × 10⁵ J mol^( -1 ) . What is the minimum energy needed to remove an electron from sodium ? What is the maximum wavelength that will cause a photoelectron to be emitted ?

Answer,

View in the above attachments.

• 1st attachment is in left side.
• 2nd attachment is in middle side.
• 3rd attachment is in right side.
• 4th attachment is in the image of visible spectrum.

The visible spectrum is ranging form 400 to 750 nanometers in wavelength and 10¹⁵ Hz is the range in frequency.

Answer 2

Answer:

with a kinetic energy of 1.68×10 Jmol−1