Two slits separated by 0.10 mm are illuminated with green light ...

[crobinson2013]

Two slits separated by 0.10 mm are illuminated with green light (l = 540 nm). Calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away.
 a. 2.3
  b. 2.5
  c. 2.7
  d. 2.1
  e. 2.0

Question 2

For small angle approximations
 a. the angle must be 10 or less
  b. the angle must be 10 radians or less
  c. the angle must be 1 or less
  d. the angle must be 1 radian or less
  e. the angle must be 45 or less

[uniquea123]

Answer to Question 1

C

Answer to Question 2

A

[crobinson2013]

Thanks for the timely response, appreciate it

[xiaomengxian]

TYSM