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## 05.6 GAMSAT Section 3 Physics I

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Lesson 1, Topic 2
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# Practice Questions Lens

##### John
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1. Diverging Lens with focal length of 10cm. Object is placed 20cm away from the lens. Find image distance. Same or opposite side? Real or virtual? Upright or Inverted?Magnified or diminshed?

2. Concave Mirror with focal length of 10cm. Object is placed 20cm away from the lens. Find image distance. Same side or inside mirror? Real or Vitual? Upright or Inverted?

3. Concave mirror with focal length of 10cm. Object is placed 10cm(i.e., on the focal point). Find image distance. Same side or inside mirror? Real or Vitual? Upright or Inverted?

4. Concave mirror with focal length of 10cm. Object is placed 5cm. Find image distance. Same side or inside mirror? Real or Vitual? Upright or Inverted?

5. Convex mirror with focal length of 10cm. Object is placed 10cm. Find image distance. Same side or inside mirror? Real or Vitual? Upright or Inverted?

When we discussed the red,green,yellow, blue beads going to different locations through converging lens, remember this fact. The further away it is, the closer it arrives. If placed above principal axis(PA), it ends up below PA, vice versa. If placed to the right of the PA, it ends up to the left of PA, vice versa.