« previous next »

Author Question: Monochromatic light from a He-Ne laser (l = 632.8 nm) is incident on a diffraction grating ... (Read 120 times)

ENagel

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
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
Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Parallel Light Rays from Distant Objects Parallel Light Rays from Distant Objects
Tap the head. Apply light fingertip tapotement to the head: top, sides, and back. Tap the head. Apply light fingertip tapotement to the head: top, sides, and back.
Light beer has about the same amount of alcohol as regular beer Light beer has about the same amount of alcohol as regular beer
A small 355-g box hangs from one end of a thin light string that goes over a frictionless ... A small 355-g box hangs from one end of a thin light string that goes over a frictionless ...
Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v
Video: Introduction to Photolithography - WC, BLF, PA, Hard and Soft baking

For a complete list of videos, visit our video library