« previous next »

Author Question: In both the camera and the __________, light enters a narrow opening and is projected onto a ... (Read 71 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?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Light Waves in the Electromagnetic Spectrum Light Waves in the Electromagnetic Spectrum
Opening a Sterile Packet Opening a Sterile Packet
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ... Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
Transduction of Light by Photoreceptors Transduction of Light by Photoreceptors
Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg. Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg.
A land snail (Helix aspersa) with the opening that leads to its lung visible at the left. A land snail (Helix aspersa) with the opening that leads to its lung visible at the left.
Video: Digestive System Animation

For a complete list of videos, visit our video library