11A Optics Review Quiz Name_________________
M = hi/ho = -di/do 1/f=1/do+1/di
1. If Sarah’s heart beats 130 times each minute determine the period of her heartbeat. (1)
2. If Daniel can dribble 45 times in a minute, calculate the period (in s)
and frequency (in Hz) of his dribble.
4. Light travels from zircon(n=1.8) to glass (n=1.5) with a 60o angle of refraction. Determine the angle of incidence. (2)
5. The critical angle for light that travels form plastic to air is 48o. calculate the refractive index for the plastic to three significant digits and include a sketch in your answer. (3)
6. Where would the image of a 5.0cm long object that is placed 27cm from a converging lens with a focal length of 16cm be located? (3)
b) State the image characteristics. (2)
c) Determine the Magnification and the size of the mage (2)
AP Bonus Where would you need to place an object from a converging 14cm lens to
produce a magnification of 2.5? (.5)
(AP Optional) 7. The image of a star is formed 12cm behind a lens. What is the strength of the lens in diopters? (1)
ANSWERS
1 0.46s 2. 1.33 s 0.75 Hx 4. 46o 5. -1.45 6. 39.3 cm
6b) real inverted larger M=-1.45 7.3 8.4 cm 8.3 diopters