About Light

41. What is the name of the phenomenon where light waves bend around an obstacle?
a) Reflection
b) Refraction
c) Interference
d) Diffraction

42. What is the name of the type of lens that is thicker in the middle than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

43. What is the name of the type of lens that is thinner in the middle than at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens

44. What is the name of the phenomenon where light waves are separated into different colors?
a) Reflection
b) Refraction
c) Interference
d) Diffraction

45. What is the name of the instrument used to separate light into its component colors?
a) Prism
b) Lens
c) Mirror
d) Filter