Question 1 (1 point) If you look at your own reflection in a concave mirror, you will (use a spoon to verify your answer if you're unsure) O Always appear upside down Always appear right side up Appear right side up if you're closer than the focal length, and upside down if farther Appear upside down if you're closer than the focal length, and right side up if farther Question 2 (1 point) For a plane mirror, the image is always OReal, behind the mirror OReal, in front of the mirror O Virtual, behind the mirror OVirtual, in front of the mirror Question 3 (1 point) In the law of reflection, the reflection angle is with respect to the normal of the surface. O greater than the incident angle Oless than the incident angle O the same as the incident angle O different depending on the materialQuestion 4 (1 point) If you look at your own reflection in a convex mirror, you will _ (use a spoon to verify your answer if you're unsure) Always appear right side up Appear right side up if you're closer than the focal length, and upside down if farther Always appear upside down Appear upside down if you're closer than the focal length, and right side up if farther Question 5 (1 point) Is it possible to make lenses for sound? O No, sound waves are too long to refract Yes, but the relative indices of refraction might be different, so the converging/diverging behaviour of a particular lens would be different for sound compared to light Yes, materials have the same relative indices of refraction for light and sound, so the converging/diverging behaviour of a particular lens would be the same for sound compared to light O No, there is no index of refraction for sound waves Question 6 (1 point) A light wave has a wavelength of 750 nm in water (n=1.333). What wavelength would that same light wave have in quartz glass (n=1.510) 850 nm 662 nm 750 nm 497 nmQuestion 7 (1 point) A light ray passes from air into a block of glass (n=1.50) at 46.0 deg. Determine the angle of refraction. 57.4 deg 46.0 deg 28.7 dee 30.7 deg Question 8 (1 point) When light refracts from a less optically dense medium to a more optically dense medium, the light ray ... O bends towards the normal O does that bend at all the index of refraction is required bends away the normal Question 9 (1 point) Light coming out of water (n=1.333) at an angle of 30" to the normal hits a surface of unknown substance and refracts at an angle of 67" to the normal. What is the index of refraction of the unknown substance? Your Answer: Answer Question 10 (1 point) You place an object 70.0 mm in front of a mirror with a focal length of -5.0 mm. Where is the image formed? Give your answer to three significant figures in mm, ensuring that you use the correct sign. (Hint: by convention, negative numbers specify distances behind the mirror, and positive numbers distance in front of the mirror) Your Answer: Answer units