Question

While performing an experiment on verifying the laws of reflection of sound, a student is to choose between (i) a narrow or a wide tube and (ii) a strong or a faint source of sound.
The observed experimental difference, between the values of angle of incidence and angle of reflection, is likely to be minimum
when he chooses a:
(1) narrow tube and a faint source
(2) wide tube and a faint source
(3) narrow tube and a strong source
(4) wide tube and a strong source

Answer 1

Sound.The observed experimental difference, between the values of angle of incidence and angle of reflection.