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
vekshin1
3 years ago
7

You are designing an optical fiber scope for directing light into a confined area. You want to keep light within the fiber. Base

d on the specifications, you know that the greatest angle that the light will make with the horizontal is no greater than 25⁰. Assuming you will be using the scope in the body which has the same index of refraction of water (n = 1.33). What is the minimum index of refraction n2 required for the design to be functional?
Physics
1 answer:
shepuryov [24]3 years ago
3 0

Answer:

Explanation:

 For entry of light into tube of unknown refractive index

sin ( 90 - 25 ) / sinr = μ , μ is the refractive index of the tube , r is angle of refraction in the medium of tube

r = 90 - C where C is critical angle between μ and body medium in which tube will be inserted.

sin ( 90 - 25 ) / sin( 90 - C)  = μ

sin65 / cos C = μ

sinC = 1.33 / μ  , where 1.33 is the refractive index of body liquid.

From these equations

sin65 / cos C = 1.33 / sinC

TanC = 1.33 / sin65

TanC = 1.33 / .9063

TanC = 1.4675

C= 56°

sinC = 1.33 / μ

μ = 1.33 / sinC

= 1.33 / sin56

= 1.33 / .829

μ = 1.6   Ans

You might be interested in
What are the angles which the vector A=3i+6j makes with the cordinate axis
xeze [42]
Find the angles which the vecotr <span><span><span><span><span>v </span><span>⃗ </span></span>=3i−6j+2k</span> </span><span><span>v→</span>=3i−6j+2k</span></span> makes with the coordinate axes.
If the angles are <span><span><span>α,β,θ</span> </span><span>α,β,θ</span></span> , show that for any 3-dimensional vector:
. . . <span><span><span><span><span>cos </span><span>2 </span></span>α+co<span><span>s </span><span>2 </span></span>β+<span><span>cos </span><span>2 </span></span>θ=1</span> </span><span><span>cos2</span>⁡α+co<span>s2</span>β+<span>cos2</span>⁡θ=1</span></span>
5 0
3 years ago
A mass spectrograph is used to measure the masses of ions. true or false
zysi [14]

Answer:

It is true.  

Mass spectrometry (MS) is an analytical technique that measures the mass-to-charge ratio of ions. The results are typically presented as a mass spectrum, a plot of intensity as a function of the mass-to-charge ratio. Mass spectrometry is used in many different fields and is applied to pure samples as well as complex mixtures.  

A mass spectrum is a plot of the ion signal as a function of the mass-to-charge ratio. These spectra are used to determine the elemental or isotopic signature of a sample, the masses of particles and of molecules, and to elucidate the chemical identity or structure of molecules and other chemical compounds.

8 0
3 years ago
Need help asap pls
Zinaida [17]
B. third

for every action there is a reaction*
6 0
2 years ago
In this image of a pendulum, where is the lowest potential energy found?
uranmaximum [27]

Think about the formula for potential energy. (Surely you remember it):

Potential energy = (mass) x (acceleration of gravity) x (height)

-- The mass on the end of the pendulum doesn't change.

-- The acceleration of gravity doesn't change.

-- The only thing that changes is the height of the mass on the end.

So the potential energy is lowest when its height is the lowest.

That's position <em>B </em>.

4 0
3 years ago
Explain why isokinetic exercises cannot generally be performed by individuals at home.
Lina20 [59]

Iso-kinetic exercises cannot be performed at home by an individual because they require specific machines that enable to exercise at a constant speed with professional guidance.

<u>Explanation :</u>

Iso-kinetic exercises are that kind of training regimes that require a constant pace to strengthen your muscles with the help of machines with significant specifications.

The machines involved in iso-kinetic exercises control your pace with variable resistance throughout the session and hence, it’s not a cup of tea for an individual to trace his/her performances and the respective improvements.

So, before going for a iso-kinetic schedule, be sure to have a word with your physiotherapist to train well with the machines under the specifications that can better suit your body and its requirements.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Is the muzzle velocity a scalar or vector quantity?
    7·1 answer
  • explain why a balloon in hot water expands but balloon in ice water shrinks be sure to include information regarding the (1) num
    11·1 answer
  • A cylindrical tungsten filament 14.0 cmcm long with a diameter of 1.00 mmmm is to be used in a machine for which the temperature
    11·1 answer
  • A magnetic field is uniform over a flat, horizontal circular region with a radius of 2.00 mm, and the field varies with time. In
    8·1 answer
  • The model of the atom has changed as scientists have gathered new evidence. Four models of the atom are shown below, but one imp
    9·1 answer
  • Create a series circuit with a 10-volt battery and four 10-ohm resistors, as shown. Measure the current. A. Based on the voltage
    13·2 answers
  • Franny drew a diagram to compare images produced by concave and convex lenses.
    5·2 answers
  • A hungry hawk was preying on a lizard who was running northwards to get away from the low-flying hawk. If the lizard can run 8m
    14·1 answer
  • Why would a person choosing to take a line of credit want to choose one that charges simple interest
    11·1 answer
  • A box of mass 7.7 - kg is accelerated from rest across a floor at a rate of 2.6 m/s2 for 18.5 s. Find the net work done on the b
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!