Author Question: Which of the following statements is true of the angles of incidence and reflection? a. They are ... (Read 51 times)

RODY.ELKHALIL

  • Hero Member
  • *****
  • Posts: 591
Which of the following statements is true of the angles of incidence and reflection?
 a. They are not related
  b. They can never be equal
  c. They are always equal
  d. They add to 90.

Question 2

Film behind a double slit is exposed to light in the following way: First one slit is opened and light is allowed to go through that slit for time t. Then it is closed and the other slit is opened and light is allowed to go through that slit for the same time t. When the film is developed the pattern will be
 a. one single slit pattern.
  b. two superimposed single slit patterns, their centers displaced from each other by the distance between the two slits.
  c. one double slit pattern.
  d. two double slit patterns, their centers displaced from each other by the distance between the two slits.
  e. random darkening of the film. (no pattern at all)



leahchrapun

  • Sr. Member
  • ****
  • Posts: 332
Answer to Question 1

c

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

For a complete list of videos, visit our video library