« previous next »

Author Question: Rainbows are caused by sunlight being A) dispersed. B) dispersed, refracted, & reflected. ... (Read 64 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
Rainbows are caused by sunlight being
 
  A) dispersed.
  B) dispersed, refracted, & reflected.
  C) refracted.
  D) reflected.
  E) refracted & reflected but not dispersed.

Question 2

The resolution limit of a circular aperture telescope is
 
  A) inversely proportional to wavelength.
  B) proportional to frequency of light.
  C) less than that of a square aperture whose diagonal equals the diameter.
  D) inversely proportional to aperture size.


Kingjoffery

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Variegated leaves caused by a mutation in cpDNA Variegated leaves caused by a mutation in cpDNA
Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw
Carbuncles caused by S. aureus. Carbuncles caused by S. aureus.
Abnormalities Caused by Cardiac Pathology Abnormalities Caused by Cardiac Pathology
Rainbows: Cloud and Precipitation Optics Rainbows: Cloud and Precipitation Optics
A valve corroded by nitric acid. Hazardous materials releases are often caused by using incompatible ... A valve corroded by nitric acid. Hazardous materials releases are often caused by using incompatible ...
Video: Regulation of GFR: autoregulation via tubuloglomerular feedback, neural & hormonal regulation

For a complete list of videos, visit our video library