Calculate the index of refraction of air, Physics

A Rayleigh interferometer (as shown in the figure below) can be used to measure the index of refraction of air. Two transparent tubes (T1 and T2) are placed behind two slits. One of the tubes (T2) was filled with air already, while the other tube (T1) was in vacuum at the beginning. Then air was gradually filled into T1 until reaching the same pressure as T2.  During this process, it was observed that the intensity at P changed 98.5 times. The tube length was 20 cm, wavelength of light was 589.3 nm. Please calculate the index of refraction of air (to the accuracy of 0.00001).

1194_calculate the index of refraction of air.png

Hint: the path length of light in a medium equals to the index of refraction times actual length.

Posted Date: 2/15/2013 2:54:48 AM | Location : United States

Related Discussions:- Calculate the index of refraction of air, Assignment Help, Ask Question on Calculate the index of refraction of air, Get Answer, Expert's Help, Calculate the index of refraction of air Discussions

Write discussion on Calculate the index of refraction of air
Your posts are moderated
Related Questions
Length contraction (relativity of length) is the length of a body moving with a relativistic velocity v = c relative to an observer is contracted by a factor in the direction of m

Grounding a Positively Charged Electroscope While the positively charged electroscope is touched and its charge becomes grounded or neutralized this is depicted within the anim

Q. What is the neutron? Answer:- A neutron is a subatomic particle it's one of the building blocks of the atom. It has a mass of in relation to 1.675 x 10-27 kg. Its spin

what is motion?

For the double-beam oscilloscope displays shown in Figure, determine (a) their frequency (b) their r.m.s. values (c) their phase difference. The 'time/cm' switch is on 10

The density of neutrons is of the order: (1)10 3 kg/ cc  (2)10 6 kg/cc  (3)10 9 kg/cc (4) 10 11 kg/cc Ans:(4) 10 11 kg/cc

D- Ultrasonic wave Heating These waves are different from electromagnetic waves . It produces mechanical vibration inside tissue. It is the same as the sound waves but it has

A transformer takes a current of 1A when its primary is connected to a 300V, 50Hz supply, the secondary being on open-circuit. If the power absorbed is 120watts, Determine

What is the equation of wavelength related with a moving particle?