This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A light ray passes from air through a thin plastic slab (n = 1.3) with parallel sides. If the ray in ... (Read 95 times)

cabate

  • Hero Member
  • *****
  • Posts: 537
on: Jul 28, 2018
A light ray passes from air through a thin plastic slab (n = 1.3) with parallel sides. If the ray in air makes an angle of 67 with the normal after leaving the slab, what is the angle of incidence for the ray in air as it impinges upon the other side of the slab?
 a. 33
  c. 58.5
  b. 67
  d. 45

Question 2

The observation that materials expand in size with an increase in temperature can be applied to what proportion of existing substances?
 a. 100
  c. few
  b. most
  d. none


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

B


cabate

  • Hero Member
  • *****
  • Posts: 537
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


shaikhs

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Physical therapist assisting a patient to walk in the parallel bars. Physical therapist assisting a patient to walk in the parallel bars.
In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai In 2013, Americans learned that the federal government massively surveys their phone calls and e-mai
To check for voltage at terminal 30, use a test light or a voltmeter. Start by connecting the ... To check for voltage at terminal 30, use a test light or a voltmeter. Start by connecting the ...
(a) A turbidometry detector measures laser light directly across from the light source. The sample, ... (a) A turbidometry detector measures laser light directly across from the light source. The sample, ...
Rolling on the arm. Hands on opposite sides of the arm compress and roll the soft tissues and create ... Rolling on the arm. Hands on opposite sides of the arm compress and roll the soft tissues and create ...
Place a towel or sheet over knee area. Use a thin barrier to protect skin from cold source. Place a towel or sheet over knee area. Use a thin barrier to protect skin from cold source.
Video: Rena arc construction

For a complete list of videos, visit our video library