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WorksheetsMirrors & Lenses
Total questions: 15
Worksheet time: 8mins
Which of the following shows mainly diffuse reflection?
All of the above.
Which of the following shows diffuse reflection?
The left
The right
Both show diffuse reflection
Neither show diffuse reflection
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?
Which device uses reflection to diverge light?
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.
Which ray diagram shows a real image?
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?
All of the above.
Which of the following is evidence that this is a virtual image?
Virtual images are always upright.
Virtual images are always larger than the original object.
Virtual images always have converging rays.
Virtual images always have positive focal lengths.
This gif best shows
that images are always largest when an object is near the focal point
that images are always virtual for converging mirrors
that images are always larger for converging mirrors
that images are smallest when the object is on the focal point
Based on this picture, what is known about the focal length of this device?
f is positive
f is negative
there is no focal length of this device
there is not enough information to determine
An image is created whose magnification is m = +0.5. What does this value signify about the image?
A. It is virtual.
B. It is upright.
C. It is smaller than the original object
All of the above
An image is created whose di = -5 cm. What does this indicate?
The image is virtual.
The image is smaller than the original object.
The image is inverted.
The image is larger than the original object.
