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
frutty [35]
2 years ago
12

The efficiency of a light source is the percentage of its energy input that gets radiated as visible light. if some of the blue

light in an led is used to cause a fluorescent material to glow:____.
Physics
1 answer:
Anestetic [448]2 years ago
7 0

The efficiency of a light source is the percentage of its energy input that gets radiated as visible light if some of the blue light in an led is used to cause a fluorescent material to glow the overall efficiency of the LED decreases.

How efficient is LED?

Different wavelengths that correlate to different visible colours are used in LED light therapy. Various shades pierce the skin at different rates.

  1. Your skin's outermost layer is impacted by blue light.
  2. Yellow light is more enveloping.
  3. Red light penetrates your skin more deeply.
  4. The deepest penetrating light is near-infrared.

Different LED hues have various effects. For instance, according to experts red LED light therapy has the potential to reduce inflammation and boost collagen formation, which declines with age and is crucial for maintaining youthful-looking skin.

Acne-causing bacteria may be destroyed by a blue LED light therapy (P. acnes).

Hence the answer is the overall efficiency of the LED decreases.

Learn more about wavelength here,

brainly.com/question/1263539

# SPJ4

You might be interested in
What is the frequency of a sound wave with a wavelength of 0.04 meter in air? What type of wave is
Viktor [21]
8500 Hz and Longitudinal


Speed = frequency x wavelength

Speed of sound at 20 degrees Celsius is approximately 340 m/s
4 0
3 years ago
Read 2 more answers
It is correct to say that impulse is equal toA) momentum.B) the change in momentum.C) the force multiplied by the distance the f
Elena-2011 [213]

Answer:

B) the change in momentum.

Explanation:

The impulse is defined as the product between the force applied on an object (F) and the duration of the collision (\Delta t):

J=F \Delta t (1)

We can rewrite the force by using Newton's second law, as the product between mass (m) and acceleration (a):

F=ma

So, (1) becomes

J=ma \Delta t

Now we can also rewrite the acceleration as ratio between the change in velocity and change in time: a=\frac{\Delta v}{\Delta t}. If we substitute into the previous equation, we find

J=m\frac{\Delta v}{\Delta t}\Delta t=m\Delta v

And the quantity m\Delta v is equivalent to the change in momentum, \Delta p.

6 0
3 years ago
Concept Simulation 2.3 offers a useful review of the concepts central to this problem. An astronaut on a distant planet wants to
Alexandra [31]

Answer:

1.40 m/s^2

Explanation:

Given data

Velocity= 17.4 m/s

time= 12.4 seconds

We want to find the acceleration of the rock

We know that

acceleration = velocity/time

Substitute

acceleration= 17.4/12.4

acceleration=1.40 m/s^2

Hence the acceleration is 1.40 m/s^2

7 0
2 years ago
Question about generators and electrical currents. Please, no absurd answers! Thank you
Kamila [148]
The first answer should be correct if not then the second one
3 0
3 years ago
Read 2 more answers
A small spotlight mounted in the bottom of a swimming pool that is 5.0 m deep emits light in all directions. On the surface of t
Artist 52 [7]
The radius is higher than the refraction
5 0
3 years ago
Other questions:
  • A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60
    12·2 answers
  • When falling through the air, which of the following objects will hit the ground first?
    11·2 answers
  • Which one of the following is NOT an evidence of the Big Bang Theory? A. most objects in space are moving away from one another
    14·1 answer
  • Many galaxies appear to have supermassive black holes in their centers powering active galactic nuclei (also called AGN). The Sc
    6·1 answer
  • An optical disk drive in a computer can spin a disk at up to 10,000 rpm. If a particular disk is spun at 7570 rpm while it is be
    15·2 answers
  • How do particles move differently in transverse waves and in surface water waves?
    10·1 answer
  • A puck of mass m 0.085 kg is going in a circle on a horizontal frictionless surface. It is held in its orbit by massless string
    11·1 answer
  • Describe a light wave and explain how light wave travel through solids liquids and gasses
    11·1 answer
  • A 105 kg crate initially at rest on a horizontal floor requires a 705 N horizontal force
    14·1 answer
  • A 7.8-kg solid sphere, made of metal whose density is 2500 kg/m3, is suspended by a cord. When the sphere is immersed in water (
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!