3C.3 Poloarisation

Question 1

what is polarisation

Answer 1

the orientation of the plane of oscillations of a transverse wave, if the wave is (plane) polarised, all its oscillations would occur in a single plane

Question 2

what are polarising filter

Answer 2

it is a piece of plastic soaked with chemicals with a long chain of molecules called a polaroid sheet, that polaroid shield would only allow light waves to pass if their electric field oscillations in one direction

Question 3

how can light be stopped transmitting using a polarizing filter

Answer 3

by using crossed polaroids which are two polarising filters one placed vertically and the other horizontally the first filter would only allow vertical oscillations and the second would block out the horizontal occisilations

Question 4

reflection can cause

Answer 4

polarisation often in the horizontal plane

Question 5

the degree of polarization from reflection depends on

Answer 5

the angle of incidence

Question 6

refraction can cause

Answer 6

polarisation of the vertical plane

Question 7

the amount of sugar concentrations

Answer 7

vary the angle at which it rotates the polarization of light

Question 8

how can we use polarise filter to analyze the strength of a sugar concentration

Answer 8

by measuring the angle of light that is polarised when it emerges from the light