After the last week of physics class, you start playing with lasers and your fis
ID: 2305592 • Letter: A
Question
After the last week of physics class, you start playing with lasers and your fish tank at home. You shine your laser of wavelength 405 nm through the flat face of the glass (a special glass with n=1.55) aquarium tank at an angle of incidence of 45°.
Your laser outside the tank shines the light beam through the glass and into the water inside the tank. At what angle from the normal does the light enter the water?
Howwouldthisanglechangeifthetankwasmadeofdiamond?
How would the angle change if the tank was originally made of 20° C ice?
Explanation / Answer
the answer to the 1st part is 17.1168degree.
sin i/sinr=1.55 from there calculate the refracting angle....nd we get 27.1420 degree
then again do sin i/sin r=1/1.55 put the value of refracting angle to get angle of incidence.
diamond is optically rarer than water so angle of reffaction will be more.
no change