1) The diagram shows a phenomena of a) reflection of light b) refraction of light c) Interference of light 2) The diagram shows light travel from air to a glass block. Compare the optical density of both medium a) the optically density of air > the optically density of glass block. b) the optically density of air < the optically density of glass block c) the optically density of air = the optically density of glass block 3) Which of the following is NOT correct when a light ray is refracted in a certain medium a) Its frequency is changed b) its speed is changed c) its direction is changed 4) The diagram shows a phenomena of a) reflection of light b) refraction of light c) Total internal reflection 5) Which of the following is NOT a condition for total internal refflection to occur a) incidence angle is larger than critical angle b) incidence angle is equal to critical angle c) light moves from optically denser to less denser medium 6) Which of the following natural phenomena that involve total internal reflection a) rainbow b) rain c) sunset 7) Which of the following is NOT the characteristic of the image a) Diminished b) Inverted c) upright 8) The distance from the object to the center of the lens is known as a) Object distance b) Image distance c) Focal lenght 9) Which of the following is one the uses of convex mirror a) b) c) 10) Which of the following is NOT the uses of concave mirror a) cosmetic mirror b) blind spot mirror c) dental mirror

Chapter 6: Light and Optics

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