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
FromTheMoon [43]
2 years ago
9

Wavelength of blue photons 495 nm, what is the frequency? and what is the energy?

Physics
1 answer:
inessss [21]2 years ago
3 0

Answer:

1.F: About 6*10^14 Hz

2.E: About 4*10^ -19 J

Explanation:

Frequency: We knew that the speed of a wave is its wavelength(λ)* frequency(f, in Hz).  By the wave-particle duality we know we can calculate the frequency of light in the same way. So, c=495nm *f, f=c/495nm=> (299,792,458 m/s) / (4.95*10^-7 m)

=6.05*10^14 /s

Energy: The energy photon contains can be calculate by this formula-- E=hf

f is the frequency and h is Planck's constant which is about 6.62 ×10^-34 *m^2*kg/s (after dimensional analysis ) =6.62*10^ -34 J*s.

So, the energy of a blue photon is (6.05*10^14)*(6.62*10^-34)=40.051*10^-20=  4.051*10^-19 J

You might be interested in
Which statement accurately describes the illustration?
Elina [12.6K]

Answer: A. Hydrogen has a valence of 1 and Oxygen has a valence of 8.

Explanation:

Meaning that oxygen has 8 valence electrons in its outer shell and hydrogen has 1 valence electron in its outer shell

8 0
3 years ago
Read 2 more answers
Which is a property of bases?
vesna_86 [32]

Answer:

C. Slippery feel

Explanation:

4 0
3 years ago
Read 2 more answers
Which statement correctly describes these electric field lines?
Otrada [13]
I don’t know, which statement ahh I see white screen lol
4 0
2 years ago
State a situation in which force is applied on a body, but no work is done​
LenaWriter [7]
If you press on your arm force is applied work done is if it moves.
One answer could be if I was to press my hand on a table.
Have a great day!
8 0
3 years ago
Read 2 more answers
Why do you think it is a driving force of weather around the world?
Finger [1]

Answer:

The sun.

Explanation:

The sun provides energy for living organisms, and it drives our planet’s weather and climate patterns.

Remember, Earth is spherical and the energy from the sun does not reach all areas with equal intensity. Areas exposed to the sun are directly on the sun’s rays (i.e. those nearest to the equator) and hence, receive greater solar input. In contrast, those in higher latitudes receive sunlight that is spread over a larger area and that has taken a longer path through the atmosphere. As a result, these higher latitudes receive less solar energy.

Also, ocean circulation and precipitation are all factors of weather

4 0
2 years ago
Other questions:
  • When a water wave runs into you at the beach, what causes you to get knocked down?
    9·1 answer
  • A monkey weighs 6.00 x 102 N and swings from vine to vine. As the monkey grabs a new vine, both vines make an angle of 35.0° wit
    13·1 answer
  • HEELLP!!!!!!<br> How many paragraphs do you need for a science fair research paper?
    5·1 answer
  • Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two c
    14·1 answer
  • If there is gravity where the International Space Station (ISS) is located above Earth, why doesn’t the space station get pulled
    12·1 answer
  • Which portion of the electromagnetic spectrum is used to identify fluorescent minerals?
    5·1 answer
  • What does the narrator mean when he says that energy is “as old as time itsself “
    10·1 answer
  • HELP: I’ve been stuck on this problem for a while now.
    5·1 answer
  • Does the universe need explaining or can it just 'be' there?
    15·1 answer
  • If an airplane were traveling eastward with a thrust force 450 N and there was a tailwind of 200 N, what would the resulting net
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!