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

Author Question: The radiation our eyes are most sensitive to is the color A) black at 227 nm. B) blue at 4,321 ... (Read 56 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Jul 27, 2018
The radiation our eyes are most sensitive to is the color
 
  A) black at 227 nm.
  B) blue at 4,321 nm.
  C) violet at 7,000 Angstroms.
  D) yellow-green at about 550 nm.
  E) red at 6563 Angstroms.

Question 2

According to the inverse square law of light, how will the apparent brightness of an object change if its distance to us triples?
 
  A) Its apparent brightness will decrease by a factor of 3.
  B) Its apparent brightness will increase by a factor of 9.
  C) Its apparent brightness will increase by a factor of 3.
  D) Its apparent brightness will decrease by a factor of 9.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ghepp

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


shofmannx20

  • Member
  • Posts: 562
Reply 2 on: Jul 27, 2018
Gracias!

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Whites pour mustard and ketchup over black (and white) students who were integrating a lunch counter ... Whites pour mustard and ketchup over black (and white) students who were integrating a lunch counter ...
Ben Jones, Black Face and Arm Unit. Ben Jones, Black Face and Arm Unit.
Dosimeter or personal radiation badge. Dosimeter or personal radiation badge.
The absorption of cerebrospinal fluid from the subarachnoid space (blue) into a major sinus. Note ... The absorption of cerebrospinal fluid from the subarachnoid space (blue) into a major sinus. Note ...
When I Look In Your Eyes I Go Crazy When I Look In Your Eyes I Go Crazy
Video: Origin of organelles Animation

For a complete list of videos, visit our video library