Author Question: Monochromatic light from a He-Ne laser (l = 632.8 nm) is incident on a diffraction grating ... (Read 79 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
Monochromatic light from a He-Ne laser (l = 632.8 nm) is incident on a diffraction grating containing 5 000 lines/cm. Determine the angle of the first-order maximum.
 a. 18.4
  b. 39.2
  c. 14.6
  d. 27.7
  e. 13.9

Question 2

A single slit of width a is illuminated by light of wavelength l. If a = 4.3l, the maximum number of dark fringes on a semi-circular screen surrounding the slit is
 a. 2.
  b. 4.
  c. 6.
  d. 8.
  e. 9.



ecox1012

  • Sr. Member
  • ****
  • Posts: 344
Answer to Question 1

A

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

For a complete list of videos, visit our video library