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
taurus [48]
3 years ago
9

The energy band gap of GaAs is 1.4 eV. Calculate the optimum wavelength of light for

Physics
1 answer:
notsponge [240]3 years ago
3 0

Answer:

The optimum wavelength = (8.863 × 10⁻⁷) m = 886.3 nm

Explanation:

The light that will generate the photovoltaic energy of 1.4 eV will must have that amount of energy

Energy of light waves is given as

E = hf

h = Planck's constant = (6.626 × 10⁻³⁴) J.s

f = Frequency of the light

The frequency is then further given as

f = (c/λ)

c = speed of light = (3.0 × 10⁸) m/s

λ = wavelength of the light = ?

E = (hc/λ)

λ = (hc/E)

Energy = E = 1.4 eV = 1.4 × 1.602 × 10⁻¹⁹ = (2.2428 × 10⁻¹⁹) J

λ = (6.626 × 10⁻³⁴ × 3.0 × 10⁸)/(2.2428 × 10⁻¹⁹)

λ = (8.863 × 10⁻⁷) m = 886 nm

Hope this Helps!!!

You might be interested in
What’s is the movement of one object around another
allsm [11]

Answer:

revolution

Explanation:

8 0
3 years ago
How does an electroscope detect negative static electricity
MA_775_DIABLO [31]
<span> An electroscope that might have a static charge is tested on a metal surface. From there, the charges move to the metal and straight to the foil leaves. If they repel, or move away from each other, that means they have identical charges. This applies for both positive and negative static electricity.

work cited: School of champions, Google
</span>
5 0
2 years ago
Which equation represents an equilibrium system??
MrRissso [65]

A. 2 S O 2, gas, plus O 2, gas, in equilibrium with 2 S O 3, gas.


7 0
3 years ago
HELP ME ASAP!!!!100 points!!!!!<br><br><br><br><br>How do you get your fingers in the Labia?
Nina [5.8K]
You literally just put your fingers in your genitals? is this for a sex ed course...?
4 0
3 years ago
Read 2 more answers
if you dig a hole through the earth, from one hemisphere to the other, and drop a tennis ball into it, would it get stuck at the
tia_tia [17]

Answer:

Depending on which hemisphere it is, like western to eastern, It would most likely get stuck at the center. You would also have to put more things into thought like acceleration, velocity, and speed.

BUT since the question asked "would it pop out the other side?", I'm assuming it's talking about northern to southern hemisphere. so in that case it would pop out the other side since gravity makes things go downwards.

7 0
2 years ago
Read 2 more answers
Other questions:
  • Subtract 7.987 m - 0.54 m and the final answer must be in decimal form
    5·1 answer
  • A straight wire carrying a 3.30-A current is placed in a uniform magnetic field of magnitude 0.272 T directed perpendicular to t
    12·1 answer
  • How long would light take to travel from one hill to another
    14·1 answer
  • I just don't know how to do the question (a) and (b)​
    14·1 answer
  • Jay kicks a soccer ball Upward at an angle of 45 with a velocity of 20 m/s landing 2.8 seconds later​
    12·1 answer
  • what is required to cause a body of mass 500g to accelerate uniformly from rest across a smooth horizontal surface so that it wi
    12·1 answer
  • Vector A has magnitude of 8units and makes an angle of 45° with the positive x-axis. Vector B also has the same magnitude of 8un
    14·1 answer
  • Which of the following is a characteristic of a base?
    11·1 answer
  • A car travels along highway with a speed of 36 km/h. Find out the distance
    11·1 answer
  • If the nuclide has a half-life of eight days, what mass of the nuclide remains in the patient at 6:00 p.m. the next day? (assume
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!