« previous next »

Author Question: A laser beam strikes a plane's reflecting surface with an angle of incidence of 43. What is the ... (Read 62 times)

123654777

  • Hero Member
  • *****
  • Posts: 585
on: Jul 29, 2018
A laser beam strikes a plane's reflecting surface with an angle of incidence of 43. What is the angle between the incident ray and the reflected ray?
 
  A)
 
  43
  B)
 
  86
  C)
 
  45
  D)
 
  90
  E)
 
  0

Question 2

The potential outside a uniformly charged sphere is the same as if all the charge were concentrated at its center.
 
  Indicate whether the statement is true or false


Perkypinki

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

123654777

  • Hero Member
  • *****
  • Posts: 585
Reply #2 on: Jul 29, 2018
Thank you!


Perkypinki

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

The Inner Surface of Human Lung The Inner Surface of Human Lung
The Moon’s Interior and Its Effects on the Moon’s Surface The Moon’s Interior and Its Effects on the Moon’s Surface
Sumo wrestlers on a plane. Sumo wrestlers on a plane.
Surface Features on Titan Surface Features on Titan
The incidence of overweight and obesity among adults and children The incidence of overweight and obesity among adults and children
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library