« previous next »

Author Question: A light wave traveling in air strikes a plane mirror surface at an angle of 30 relative to the ... (Read 41 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
on: Jul 28, 2018
A light wave traveling in air strikes a plane mirror surface at an angle of 30 relative to the normal. The wave is reflected at an angle of
 a. 30 relative to the surface.
  b. 30 relative to the normal.
  c. 60 relative to the normal.
  d. none of these.

Question 2

Assume we can determine the position of a particle within an uncertainty of 0.5 nm. What will be the resulting uncertainty in the particle's momentum (in kg  m/s)?
 a. 1.9  1025
  b. 4.2  1025
  c. 1.1  1025
  d. 1.3  1024
  e. 6.6  1025


dreamfighter72

  • Sr. Member
  • ****
  • Posts: 355
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

c


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

geodog55

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Jul 28, 2018
Thanks


dreamfighter72

  • Sr. Member
  • ****
  • Posts: 355
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

The iron atom of heme has six coordination bonds: four in the plane The iron atom of heme has six coordination bonds: four in the plane
Surface Dyslexia Surface Dyslexia
Use dye specifically made for coolant when checking for leaks using a black light. Use dye specifically made for coolant when checking for leaks using a black light.
How to find the resultant vector of two vectors separated by a known angle How to find the resultant vector of two vectors separated by a known angle
Mirror Neurons Mirror Neurons
Video: Factors that influence muscle tension - Sarcomere length and force, understretched and overstretched

For a complete list of videos, visit our video library