In a photoelectric effect experiment, electromagnetic radiation containing a finite distribution of wavelengths shines on a metal plate and photoelectrons are emitted.

a. When the radiation intensity is increased, the number of photoelectrons emitted by the metal ___.
b. When all of the wavelengths in the radiation are increased by the same amount, the number of photoelectrons emitted by the metal .
c. When the work function of the metal is increased, the number of photoelectrons emitted by the metal ___.

Answer with Explanation:

a.Intensity of radiation is directly proportional to the frequency of radiation

When the intensity of radiation  increases then the frequency of radiation increases and therefore, the number of photo-electrons emitted by the metal increases.

b.When all  of the wavelength in the radiation are increased by the same amount

We know that  

Frequency is inversely proportional to the wavelength.

Therefore, the frequency decrease .

When the frequency decreases then the number of photo-electrons emitted by the metal decrease.

c.When the work function of the metal is increased  then the gain of kinetic energy decreases .

When energy decreases then the number of photo-electrons emitted by the metal decreases.

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.