S2
State and explain what happens to the identical lamps X and Y in the circuit shown when
(i) Switch S2 only is closed
(ii) Switches S1 and S2 are closed

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Which best represents the law of conservation of mass ?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.