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
saul85 [17]
3 years ago
14

Kumar is producing the photoelectric effect by using red light. He wants to increase the energy of emitted electrons. Based on t

he research of Albert Einstein, what is the best way for him to do this?
Chemistry
2 answers:
Softa [21]3 years ago
7 0

Explanation:

Photoelectric effect: Electrons are ejected out from the surface of metal when light of sufficient frequency falls upon shiny surface of metals. light is made up small bundles of energy packets named photons which when falls on surface transfer their energy to electrons due which electrons ejects out of the metallic surface. The energy for one photon was given by expression:

E=h\nu, or E\propto \nu

h=Planck's constant, \nu= frequency of the light

Kumar can increase the energy of emitted electron by using light with higher value of frequency than the frequency of red light. This is because the energy  carried by the photon of a light is directly proportional to the frequency of the light. Higher the value of frequency of light higher will be the value of energy of a photon. And photon with higher energy will impart more amount of energy to an electron while ejection.

aliya0001 [1]3 years ago
3 0
He has to use a different colored light at a higher frequency.
You might be interested in
You are part of a team of scientists and engineers in charge of launching a new spacecraft to Venus. What is one way in which kn
kramer

Answer:

<em>They could see how the spaceship is going to launch and how the trip is going to end up. I hope this helped...!</em>

Explanation:

<u>Chemistry</u> can be used for lots of things, for example, <em>engineering</em> and <em>science</em> such as <em>kinetic energy</em> or <em>mechanical energy</em>.

6 0
3 years ago
Read 2 more answers
A substance has a volume of 20 mL and a density of 2.5 g/mL. What is its mass?
k0ka [10]

Answer:

<h2>mass = 50 g</h2>

Explanation:

Density of a substance can be found by using the formula

Density(\rho) =  \frac{mass}{volume}

From the question

Density = 2.5 g/mL

volume = 20 mL

To find the mass substitute the values into the above formula and solve for the mass

That's

Making mass the subject we have

mass = Density × volume

mass = 2.5 × 20

We have the final answer as

<h3>mass = 50 g</h3>

Hope this helps you

5 0
3 years ago
Read 2 more answers
Statement 1: The reaction follows the mass energy equation E= mc". Statement 2: A large amount of energy is produced during the
pogonyaev

Answer:

d

Explanation:

Chem teacher

4 0
3 years ago
Which word best discribes entropy
salantis [7]

Entropy, the measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.
4 0
3 years ago
What does a biochemical solar panel have
Viktor [21]
I agree with the person on top have a beautiful day:)
4 0
2 years ago
Other questions:
  • A solution was prepared by dissolving 40.0 g of kcl in 225 g of water. part a calculate the mass percent of kcl in the solution.
    5·2 answers
  • 5 grams of NaHCO3 was added to 50 cm3 of 1.5 mol dm-3 hydrochloric acid, causing the temperature to decrease by 6.8 K. What is t
    10·2 answers
  • What are two key characteristics of a good scientific investigation
    14·1 answer
  • PLEASE ANSWER
    12·1 answer
  • A 40.0 milligram sample of 33p decays to 10.0 milligrams in 50.0 days. What is the half life of 33p?
    7·1 answer
  • Which of the following is an example of an epeirogenic process?
    10·1 answer
  • Initially a NaOH solution was standardized by titration with a sample of potassium hydrogenphthalate, KHC8H4O4, a monoprotic aci
    15·1 answer
  • Which line-angle formula represents an alkene?
    10·1 answer
  • Which of the following is an example of cooperative behavior
    6·2 answers
  • 0/10<br> The molar mass of iron
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!