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

[littleanan]

When a 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) 138 nm
  B) 183 nm
  C) 367 nm
  D) 637 nm

Question 2

A thermodynamic engine with an efficiency of 30 performs 2500 J of work. How much thermal energy is discharged to the lower temperature reservoir?
 
  A) 5800 J
  B) 8300 J
  C) 750 J
  D) 1400 J
  E) 7100 J

[TheDev123]

Answer to Question 1

C

Answer to Question 2

A

[littleanan]

Thanks

[TheDev123]

Welcome