« previous next »

Author Question: Electrons emitted when light strikes the surface of a metal is a. photon emission b. photon ... (Read 112 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
on: Jul 28, 2018
Electrons emitted when light strikes the surface of a metal is
 a. photon emission
  b. photon absorption
  c. the photoelectric effect
  d. a laser
  e. an emission spectrum

Question 2

UPC price scanners at supermarket checkouts use laser holography to read the bar codes because the packages are three dimensional.
  Indicate whether the statement is true or false


brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

F


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

haleyc112

  • Hero Member
  • *****
  • Posts: 600
Reply #2 on: Jul 28, 2018
Thanks


brittrenee

  • Sr. Member
  • ****
  • Posts: 321
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Light Palpation of Abdomen Light Palpation of Abdomen
Electrons Electrons
Surface molecules involved in the interaction between an antigen-presenting cell and a CD4+ T cell. Surface molecules involved in the interaction between an antigen-presenting cell and a CD4+ T cell.
Observed global land and ocean surface temperature anomalies since 1850 Observed global land and ocean surface temperature anomalies since 1850
Directs surface flow of air Directs surface flow of air
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Video: Blood Flow through the Human Heart

For a complete list of videos, visit our video library