Part B Lab
Following is a screen shot of 700 nm Measurement from the
simulation
Following is the completed data table from the given procedure in the lab manual
lambda1 | theta2 | n2m | n2=n1*sin(theta1)/sin(theta2) | c2' = c/n2 |
700 | 28.2 | 1.499 | 1.496361521 | 0.668288 |
500 | 28 | 1.499 | 1.506175959 | 0.663933 |
400 | 27.8 | 1.499 | 1.516138586 | 0.65957 |
Questions
1. lambda1 = 700 nm in air
lambda2 = lambda1/n2 = 700/1.5 = 466.66666666666 nm
speed in medium 2 is c/1.5 = 1.998666666*10^8 m/s
2.
now, v2 = v1 ( frequency does not change )
hence,
v2 = c/lambda1 = 4.2828571*10^14 Hz = v1
3. when lambda1 is changed, lambda2 changes, as well as theta 2
changes (because refractive index of a medium is actually dependent
on the wavelength of the light being used)
Data table 2
The screen shot for theta = 41.8 deg measurement is as under
The completed data table according to the manual is as under
theta1 | theta2 | I1 | I2 | theta2c |
30 | 48.5 | 10.55 | 89.45 | 48.59038 |
40 | 74.5 | 38.8 | 61.2 | 74.61857 |
41.8 | 87.2 | 83.81 | 16.19 | 88.85036 |
42 | - | 100 | 0 |
Questions
1. fvor theta1 > 41.8 deg, total internal reflection happens and
the beam gets totally reflected and there is no refraction of
light
2. by snells law
critical angle be a
then
sin(a)/sin(90) = 1/1.5
a = arcsin(0.66667)
a = 41.8103 deg
C. Discovery
On changing the refractive medium, the refractive index
changes
increasing refractive index for constant wavelength increases the
angle of refraction and the critical angle as well
On selecting the wave form of rays, we can see that the
reflectred and the refracted beam are out of phases to each other
when ligh is going from opitically rarer medium to optically denser
medium
where as when it moves from optically denser medium to optically
ratrer medium the refracted and the reflected rays are in phase
Part B Lab Go to PhET website. Click on Simulation Physics. Under Physics, choose Light &...
Part B Lab Go to PhET website. Click on Simulation/Physics. Under Physics, choose Light & Radiation. Under Light & Radiation, Bending Light is the 6th simulation (Location might change. A to Z search.). Click to run the Bending Light/More Tools Complete Data Table with Bending Light/More Tools Simulation: Basic Operation for More Tools Simulation: Place check marks on Ray, Normal, and Angles. Keep the default setting Material 1 (above surface) index of refraction as air nt = 1.000 and Material...
please do table 2. the top page is for website info.
only.
Part B Lab Go to PhET website. Click on Simulation/Physics. Under Physics, choose Light & Radiation. Under Light & Radiation, Bending Light is the 6th simulation (Location might change. A to Z search.). Click to run the Bending Light/More Tools. Complete Data Table with Bending Light/More Tools Simulation: Basic Operation for More Tools Simulation: Place check marks on Ray, Normal, and Angles. Keep the default setting Material 1...
Part B Lab Go to PET website. Click on Simulation Physics Under Physics, choose Electricity Magnets & Circuits Under Electricity. Magnets & Circuits. Coulomb's Law is the 247 simulation Location might change. A to Z search). Click to run the Coulomb's Law. 1 Complete Data Table with Macro Scale Simulation Basic Operation for Macro Scale Simulation: Place check mark on Force Values Solve Coulomb's law F = 140/ forrSet Charge 1 as q. and Charge 2 as based on values...
Example 22.2 Angle of Refraction for Glass Goal Apply Snell's law to a slab of glass. Incident Normal rav Problem A light ray of wavelength 589 nm (produced by a sodium lamp) traveling through air is incident on smooth, flat slab of crown glass at an angle of θ1-35° to the normal, as sketched in Figure 22.11. Find the angle of refraction, θ2. Strategy Substitute quantities into Snell's law and solve for the unknown angle of refraction, θ2. iI Glass...
Partner: Date Name 11 Snell's Law Introduction When light passes from one material to another it is always bent away from its original path. This process is known as refraction and the change in direction depends on the change in optical density (or refractive index) of the two materials. A larger change in refractive index results in a larger change in angle between incoming and outgoing light beams. A light beam bends closer to the normal in the material with...
Can I get some help on the ones that arent answered
correctly?
LAMPIONS Edit View History Bookmarks Py 125 Tools Window Help Launch M T S 212 LabowL102. https//www.webassian.net/web/Student Assignments Bending Change + e Activity * O n 5/9 POINTS | PREVIOUS ANSWERS MY NOTES | ASK YOUR TEACHER Open the Pher simulation PhET ng Light, then enter the "intro" mode. Follow the instruction and finish the following tasks (a) Click the red button to enable the light beam. Move...
A ray of light travels through air until it strikes the interface between the air and another medium. The incident ray makes an angle of - 48.0° with the normal, as shown in the figure below. Upon passage into the second medium, the ray is refracted, emerging from the interface at an angle 0, with respect to the normal. e Air Second medium (a) Suppose that the second medium is Ice. What is the angle of refraction, 02 (in degrees)?...
water interface (the surface of the lake), it is partly
reflected back into the air and partly refracted
or transmitted into the water. This explains why on the surface of
a lake sometimes you see the reflection of the surrounding
landscape and other times the underwater vegetation.
These effects on light propagation occur because light travels at
different speeds depending on the medium. The index of refraction
of a material, denoted by n, gives an indication of the speed of...
Part I: Background When a ray of light strikes a smooth surface, it can either reflect, such as with a mirror, or it can both reflect and refract, such as with glass. In this make-up lab activity, we shall look at both situations. This make-up lab shall try to replicate the lab from your lab manual as best possible. Be sure to read the "Discussion" in your regular lab manual. You will be using the Bending Light simulation. Part II:...
please help with this!! all. if you dont know it, dont answer
it ?.
ASAP, ALL
can
you answer this. ASAP
Part II: Procedures Step 1 When the sim opens, choose Intro. The window will open with a laser pointer, turned off and pointing down and to the right. A dashed line, representing the normal line, should be visible. If not, click the box next to "Normal" in the bottom left. Drag the protractor out of the tools box and...