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| 1 | |
What is the difference between converging lenses and diverging lenses? |
| | A) | Converging lenses have one or two concave surfaces; diverging lenses have one or two convex surfaces. |
| | B) | Converging lenses are thinner in the centre than on the edges; diverging lenses are thicker in the centre than on the edges. |
| | C) | Converging lenses cause parallel light rays to come together to a common point; diverging lenses cause parallel light rays to spread away from a common point. |
| | D) | Converging lenses only have one side; diverging lenses have two sides. |
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| 2 | |
What is the difference between mirrors and lenses? |
| | A) | Mirrors are convex, and lenses are concave. |
| | B) | Mirrors are concave, and lenses are convex. |
| | C) | Mirrors can only be plane; lenses can be plane, concave, or convex. |
| | D) | Mirrors have only one side, while lenses have two. |
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| 3 | |
When a parallel light ray passes through a flat piece of glass, the ray shifts to the side but continues to move in the same direction. What term is used to describe this type of movement? |
| | A) | lateral displacement |
| | B) | diverging displacement |
| | C) | converging displacement |
| | D) | horizontal displacement |
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| 4 | |
What is a biconvex lens? |
| | A) | It is a lens with two sides that curve inward. |
| | B) | It is a lens with two sides that curve outward. |
| | C) | It is a lens with one side that is convex and one side that is plane. |
| | D) | It is a lens with two sides, but neither is convex. |
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| 5 | |
What is a biconcave lens? |
| | A) | It is a lens with one side that is concave and one side that is plane. |
| | B) | It is a lens with two sides that curve outward. |
| | C) | It is a lens with two sides that curve inward. |
| | D) | It is a lens with one side that is concave and one side that is convex. |
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| 6 | |
How does the effect of chromatic aberration on thin lenses compare to the effect on thick lenses? |
| | A) | Aberrations are not significant for thin lenses, but distort the image for thick lenses. |
| | B) | Aberrations are not as visible in thick lenses as they are in thin lenses. |
| | C) | Chromatic aberrations exist in thick and thin lenses, and the irregular images appear the same in both types of lenses. |
| | D) | Chromatic aberrations only exist in mirrors, so there is no effect on thick or thin lenses. |
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