CP Physics Chapter 15 Refraction and Lenses Refraction

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CP Physics Chapter 15 Refraction and Lenses

CP Physics Chapter 15 Refraction and Lenses

Refraction of Light • Change of velocity • Change of wavelength

Refraction of Light • Change of velocity • Change of wavelength

Example #3 How fast does light travel through diamond?

Example #3 How fast does light travel through diamond?

Change in direction

Change in direction

Fig 35 -13, p. 1104

Fig 35 -13, p. 1104

Example #4 What is the angle of refraction of a light ray entering water

Example #4 What is the angle of refraction of a light ray entering water from air at an angle of 30 degrees?

Example #5 At what angle does the light ray exit into the flint glass?

Example #5 At what angle does the light ray exit into the flint glass? 38° water ethanol flint glass

Example #6 How far are you (1. 8 m tall) standing from the edge

Example #6 How far are you (1. 8 m tall) standing from the edge of a pool, if you see a fish under water? The fish is actually 0. 9 m deep and 0. 5 m from the edge of the pool. Assume that the pool is completely filled. B. What is the apparent depth of the fish?

Example #7 What is the refracted angle of a light ray going from diamond

Example #7 What is the refracted angle of a light ray going from diamond at 37 -deg into air?

Critical Angle and T. I. R.

Critical Angle and T. I. R.

Fiber Optics

Fiber Optics

Example #8 What is the critical angle of a ray going from diamond into

Example #8 What is the critical angle of a ray going from diamond into air?

Mirages

Mirages

Rainbows

Rainbows

Formation of Rainbows

Formation of Rainbows

Why is the sky blue during midday and reddish/orange at sunset or sunrise?

Why is the sky blue during midday and reddish/orange at sunset or sunrise?

Convex Lens (Converging Lens) F F

Convex Lens (Converging Lens) F F

Focal Point of a Convex Lens

Focal Point of a Convex Lens

Spherical Aberration Fig 36 -34, p. 1152

Spherical Aberration Fig 36 -34, p. 1152

Chromatic Aberration Fig 36 -35, p. 1153

Chromatic Aberration Fig 36 -35, p. 1153

Example #6 What is the focal length of a convex lens if an image

Example #6 What is the focal length of a convex lens if an image is located 4. 5 cm in back of the lens and the object is placed at the same location but in front of the lens? what is the magnification of the lens?

Example #7 A magnifying glass is used to magnify the image of an insect

Example #7 A magnifying glass is used to magnify the image of an insect that is placed 3 cm in front of the lens with a radius of curvature of 10 cm. Where is the image located?

Concave Lens (Diverging Lens)

Concave Lens (Diverging Lens)

Example #8 Where is the image located if an object is placed 5 cm

Example #8 Where is the image located if an object is placed 5 cm in front of a 6 cm concave lens? What is the magnification of the lens? If the image is 1. 1 cm tall, what is the size of the object?

Example #9 The magnification of a particular lens is to magnify an object by

Example #9 The magnification of a particular lens is to magnify an object by +3. 5 times its original size. If the object is placed 4 cm in front of the lens, where is the image located and the focal length of the lens?

Example #10 A lens is used to magnify an image by 0. 4 times.

Example #10 A lens is used to magnify an image by 0. 4 times. If the image is RSU and the focal length is 5 cm, A) where must the image and object be placed? B) How far apart are the image and object?

Vision • 20/80 vision • Diopter/lens power • eyeball

Vision • 20/80 vision • Diopter/lens power • eyeball

Nearsighted

Nearsighted

Farsighted

Farsighted

Astigmatism

Astigmatism