Waves

Question 1

What is meant by SHM

Answer 1

an object that is displaced from its equilibrium when acted on by a linear restoring force

Question 2

what is meant by damping

Answer 2

energy is being removed from the system and the amplitude is decreasing

Question 3

what do coherent waves have

Answer 3

a constant phase relationship

Question 4

what is meant by division by amplitude

Answer 4

light incident on a medium is partially reflected and partially transmitted into the medium. The reflected component and some of the transmitted component then recombine and interfere

Question 5

what is meant by division by wavefront

Answer 5

light incident in a double slit or testing is split into two or more sources which recombine and interfere

Question 6

examples of division by amplitude

Answer 6

thin films, wedge fringes, non-reflective coatings

Question 7

examples of diving of wave front

Answer 7

young’s double slits

Question 8

unpolarised light

Answer 8

oscillates in many planes

Question 9

polarised lights

Answer 9

oscillate in the same plane