Physics

for our lab, we had to fill a semi-circle plastic dish (with a scratch on one side) with water and find the index of refraction of water by putting a pin on one side of the dish, looking through the water, and put a pin on the other side of the dish to line up with the first pin and the scratch. we then found the angles of incidence and refraction. but the light goes from air to plastic to water. does the plastic pose a problem since it has its own index of refraction?

In going through the plastic side wall of the dish, a light ray will be displaced a small amount (comparable to the thickness of the wall) but will not change its direction. The plastic will not have a significant effect on the measurement.

  1. 👍 0
  2. 👎 0
  3. 👁 213
asked by JJ

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    We were doing a refraction lab where you passed a lazer beam through a water in a semi-circular dish. I was wondering why we used a semi-circular shape?

    asked by Lena on February 8, 2009
  2. Science

    We did a refraction lab and we used a semi circular prism and through it we shot a light beam in order to find the angle of refraction. Why is it that we used a semi circle and not perhaps a per circle or some other kind of prism?

    asked by Debby on September 13, 2009
  3. Physics 30

    inquiry lab determining the refractive index of a variety of materials (Snell's Law Lab): Basically this lab: We us a polar coordinate paper and a semicircular shaped containers which we switch between, which are composed of

    asked by Lucy on October 11, 2014
  4. Algebra

    It takes 30 days to fill a laboratory dish with bacteria. If the size of the bacteria doubles each day. How long did it take for the bacteria to fill one half of dish?

    asked by Anonymous on January 1, 2012
  5. algebra

    It takes 30 days to fill a laboratory dish with bacteria. If the size of the bacteria doubles each day. How long did it take for the bacteria to fill one half of dish?

    asked by Anonymous on January 2, 2012
  6. math

    A lab is growing bacteria in a culture dish. The amount of bacteria in the dish doubles every 3 hours. Initially, there are 500 bacteria in the dish. How many are in the dish after 9 hours? My answer: 4000 -(5)^-1 My answer: -1/5

    asked by Anonymous on February 6, 2014
  7. Algebra

    A lab is growing bacteria in a culture dish. The amount of bacteria in the dish doubles every 3 hours. Initially, there are 500 bacteria in the dish. How many are in the dish after 9 hours? My answer: 4000 -(5)^-1 My answer: -1/5

    asked by Anonymous on February 6, 2014
  8. calc

    Given that a window entails a rectangle capped by a semi-circle, given that the semi-circle’s diameter concides with the rectangle’s width, given that the window’s outside (linear and curvilinear) perimeter is 24 feet, and

    asked by Anonymous on April 4, 2013
  9. Chemistry Dr. Bob

    This is in response to the fact that my experiment had me come up with my own.. I was supposed to measure out as close to 1g as possible of sodium bicarbonate as possible.. This is my lab procedures: Plastic Cup A 1. Measure out

    asked by Jennie on March 3, 2015
  10. physics 2

    A thin nonconducting rod is bent to form a semi-circle of radius R. A charge Q is uniformly distributed along the upper half and a charge -Q is uniformly distributed along the lower half, as shown int he sketch at the right.find E

    asked by peter on September 13, 2010

More Similar Questions