1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesantik [10]
3 years ago
12

The diagram above represents the photoelectric effect for a metal. When the metal surface is exposed to light with increasing fr

equency and energy of photons, electrons first begin to be ejected from the metal when the energy of the photons is 3.3×10−19J . Which of the following is closest to the frequency of the light with photon energy of 3.3×10−19J ?
5.0×10−53s−1
5.0×10−16s−1
5.0×1014s−1
C5.0×1052s−1

Advanced Placement (AP)
1 answer:
olganol [36]3 years ago
6 0

Answer: υ=5.0x10¹⁴s⁻¹

Explanation: <u>Photoelectric</u> <u>Effect</u> is a fenomenon that occur when incident light on a metal surface causes an electron to be ejected. It is possible to determine the number of eletrons and its kinetic energy by measuring the light's intensity and frequency.

According to Einstein, energy carried by light can be calculated as:

E=h.\upsilon

in which

h is Planck's constant, with magnitude h=6.626x10⁻³⁴J.s;

υ is frequency of radiation

Then, frequency of the light is

\upsilon=\frac{E}{h}

\upsilon = \frac{3.3.10^{-19}}{6.626.10^{-34}}

υ ≈ 5x10¹⁴

<u>The frequency of the light with energy of 3.3x10⁻¹⁹J </u><u>is 5x10¹⁴s⁻¹</u>

You might be interested in
Will give brainliest.
nadezda [96]
157.1 cm ^2 , because the small shaded semicircle equals the other small unshaded semicircle. So it’s the area of half the circle.
3 0
3 years ago
At what price is there an excess supply of 1000?
Sholpan [36]
I would say about 153 or in the 150’s. I can’t pinpoint the answer since the picture is a little bit blurry.
7 0
2 years ago
Professor Menendez conducted an experiment to investigate the effects of a new medication for treating the symptoms of obsessive
scZoUnD [109]

Random assignment will be useful in he research by Professor Menendez to ensure that each participant has equal chance.

<h3>What is a random assignment?</h3>

A random assignment simply means the use of chance procedure to ensure that everyone has an equal chance of being selected.

Placebo condition is any treatment which has no active properties. It's when people experience a benefit after the administration of an inactive treatment.

Learn more about research on:

brainly.com/question/968894

#SPJ1

4 0
2 years ago
PLEASE TRY FOR APWH IF UR LIKE ACC SMART
Liula [17]

Answer:

I don't know I'm terrible at AP history

5 0
2 years ago
How would you assess the role played by (a) western Europe, (b) Africa, and (c) other parts of the world in the world economy in
IrinaK [193]

Answer:

Western Europe

Explanation:

Western Europe was the only relevant answer for the 18th century, everything dealing with Africa and Asia was in the pas like in the 1300s

8 0
3 years ago
Other questions:
  • Many in the united states associate home ownership with
    12·1 answer
  • Realistic conflict theory says: a. The fewer resources available, the more prejudice there will be. b. The fewer resources avail
    7·1 answer
  • Manufacturers begin building a new plant in Arizona. Aggregate demand will
    10·1 answer
  • Which of the following best describes a factor that helped unify free-market supporters and religous fundamentalists in the New
    7·1 answer
  • Statistics The number of seats in a football stadium.
    5·1 answer
  • Describe the "medical model" and how it explains psychological disorders. How has this model changed the way people look at and
    8·1 answer
  • Ano ang dahilan ni Florante bakit mas pinipili niya ang mamatay na lamang kaysa
    8·1 answer
  • if the area of square 1 is 250 units² and the area of square 3 is 120 units².What is the area of square 2?
    11·2 answers
  • Why do Grant and Jen complete this challenge for six months? Why not 10<br> years?<br> *
    5·2 answers
  • Describe and define how the "family" has changed in your lifetime. Has it changed?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!