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

Author Question: High-energy photons are used to bombard an unknown metal. The strongest peak is found for X-rays ... (Read 111 times)

melly21297

  • Hero Member
  • *****
  • Posts: 565
on: Jul 29, 2018
High-energy photons are used to bombard an unknown metal. The strongest peak is found for X-rays with an energy of 66 keV. What is the atomic number of the metal?
 
  A)
 
  80
  B)
 
  81
  C)
 
  82
  D)
 
  83
  E)
 
  84

Question 2

Which one of the following is not a characteristic of a simple two-lens astronomical refracting telescope?
 
  A)
 
  The angular size of the final image is larger than that of the object.
  B)
 
  The final image is virtual.
  C)
 
  The objective forms a virtual image.
  D)
 
  The final image is inverted.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Smiles0805

  • Sr. Member
  • ****
  • Posts: 305
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

C


melly21297

  • Member
  • Posts: 565
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

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.

The relationship between free energy and electron movement along the electron transport chain The relationship between free energy and electron movement along the electron transport chain
Energy costs of locomotion. Energy costs of locomotion.
1-16 The Sun’s Daily Path and the Energy It Deposits Here 1-16 The Sun’s Daily Path and the Energy It Deposits Here
In 1891 William Dean Howells championed the poetry of Emily Dickinson: “This poetry is as characteri In 1891 William Dean Howells championed the poetry of Emily Dickinson: “This poetry is as characteri
The Energy Crisis The Energy Crisis
A Bat Ray cruising through the water column below the "sunburst." Bat Rays are types of ... A Bat Ray cruising through the water column below the "sunburst." Bat Rays are types of ...
Video: What Are Carbohydrates? Importance of Carbs & High Carb Food

For a complete list of videos, visit our video library