When a diffraction grating having 5000 lines/cmis illuminated by ...

[scienceeasy]

When a diffraction grating having 5000 lines/cmis illuminated by monochromatic light, the angle between the central maximum and the fourth order maximum is 47.2. What is the wavelength of the light?
 
  A) 367 nm B) 183 nm C) 138 nm D) 637 nm

Question 2

A charge of 12 C passes through an electroplating apparatus in 2.0 min. What is the average current in the apparatus?
 
  A) 0.10 A
  B) 0.60 A
  C) 1.0 A
  D) 6.0 A

[Animal_Goddess]

Answer to Question 1

A

Answer to Question 2

A

[scienceeasy]

Wow, this really help

[shewald78]

Thanks for the timely response, appreciate it