Author Question: A crystal diffracted a beam of electrons. The crystal spacing was 0.18 nm and the maximum scattering ... (Read 127 times)

mcmcdaniel

  • Hero Member
  • *****
  • Posts: 550
A crystal diffracted a beam of electrons. The crystal spacing was 0.18 nm and the maximum scattering occurred at 80. relative to the surface normal. The electrons were directed normally onto the crystal.
 
  (a) What is the wavelength of the electrons? (b) What potential difference accelerated the electrons?

Question 2

The mass of a typical adult woman is closest to
 
  A) 20 kg.
  B) 35 kg.
  C) 75 kg.
  D) 150 kg.



pallen55

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

(a) 0.18 nm
(b) 48. V

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

For a complete list of videos, visit our video library