When we consider the distance a pendulum swings to and fro we're ...

[Lobcity]

When we consider the distance a pendulum swings to and fro we're talking about the pendulum's
 
  A) frequency.
  B) period.
  C) wavelength.
  D) amplitude.

Question 2

A metal has a work function of 4.50 eV. Find the maximum kinetic energy of the photoelectrons if light of wavelength 250 nm shines on the metal. (1 eV = 1.60  10-19 J, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
 
  A) 0.00 eV
  B) 0.37 eV
  C) 0.47 eV
  D) 0.53 eV

[Madisongo23]

Answer to Question 1

Answer: D

Answer to Question 2

C

[Lobcity]

Thank you!

[Madisongo23]

Always glad to help...