Mirrors & Lenses

Which of the following shows mainly diffuse reflection?

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• All of the above.

Which of the following shows diffuse reflection?

• The left

• The right

• Both show diffuse reflection

• Neither show diffuse reflection

Tags

NGSS.MS-PS4-2

Which of the following statements is true?

• Diffuse reflection does not obey the Law of Reflection.

• Specular reflection does not obey the Law of Reflection.

• Diffuse reflection obeys Law of Reflection but the rough surface causes rays to move randomly away from each other.

• Specular reflection obeys Law of Reflection but the smooth surface causes rays to move randomly away from each other.

Which device uses refraction to converge light?

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• 

Tags

NGSS.HS-PS4-5

Which device uses reflection to diverge light?

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Tags

NGSS.MS-PS4-2

People who are into the mystic arts say to never leave a crystal ball uncovered while you aren't home to prevent evil spirits. Actually, you should always keep a crystal ball covered to prevent house fires! Why?

• Because a crystal ball acts like a diverging lens.

• Because a crystal ball acts like a converging lens.

• Because a crystal ball acts like a diverging mirror.

• Because a crystal ball acts like a converging mirror.

How could a convex lens cause house fires?

• Because it creates an upright image of the sun.

• Because it could cause all the sunlight to diverge away from a single spot.

• Because it could project a virtual image of the sun.

• Because it could cause all the sunlight to converge on a single point.

Tags

NGSS.HS-PS4-3

Which ray diagram shows a real image?

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• None of the above

The ray diagram when the object is placed on the focal point shows no image. Why is no image formed?

• Because the principal rays intersect on the virtual side of the lens.

• Because the principal rays are parallel to each other.

• Because the principal rays are perpendicular to each other.

• Because convex lenses cannot form images.

Four ray diagrams show the images formed in mirrors and lenses. Which shows a virtual image?

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• All of the above.