« previous next »

Author Question: In both the camera and the __________, light enters a narrow opening and is projected onto a ... (Read 81 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jun 23, 2018
In both the camera and the __________, light enters a narrow opening and is projected onto a photosensitive surface.
 
  a. shutter
  b. lens
  c. human eye
   d. aperture
  e. video

Question 2

Pens have been in use since ancient times. The oldest pens were made from
 
  a. small sticks from a nearby tree
  b. reeds in the West
  c. bamboo in the East
  d. tall grasses gathered along lakes and streams
  e. b, c, and d


joneynes

  • Sr. Member
  • ****
  • Posts: 376
Reply #1 on: Jun 23, 2018
Answer to Question 1

c

Answer to Question 2

e. b, c, and d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

The newest statin drug, rosuvastatin, has been called a superstatin because it appears to reduce LDL cholesterol to a greater degree than the other approved statin drugs.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

A light-coloured cane toad A light-coloured cane toad
Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m. Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m.
Color mixtures of refracted light—additive process. Color mixtures of refracted light—additive process.
Light energy from the Sun powers Light energy from the Sun powers
Student opening present Student opening present
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
Video: Lipid catabolism - lipolysis and beta oxidation and oxidation of fatty acids

For a complete list of videos, visit our video library