1. Which ancient Chinese scholar first recorded the phenomenon of pinhole imaging in his work?
- A. Confucius
- B. Mozi
- C. Laozi
- D. Zhang Heng
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Pinhole Imaging - Quiz
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Which ancient Chinese scholar first recorded the phenomenon of pinhole imaging in his work?
Pinhole Imaging - Quiz - Quiz Questions
Test your understanding of the rectilinear propagation of light and the principles of pinhole imaging through the following exercises.
2. Which of the following statements about the properties of pinhole imaging is correct?
- A. It forms an upright virtual image
- B. It forms an inverted real image
- C. The image size is always the same as the object
- D. The shape of the image depends on the shape of the pinhole
3. Keeping the position of the pinhole constant, if the object (candle) is gradually moved away from the pinhole (increasing object distance $u$), the image on the screen will:
- A. Become larger
- B. Become smaller
- C. Remain unchanged
- D. First become larger and then smaller
4. If the shape of the object is "F", then the shape seen on the screen of the pinhole imaging is:
- A. F (Upright)
- B. Mirror image of F (Left-right reversed)
- C. "F" inverted upside down and left-right reversed
- D. A circular bright spot
5. In a dark room, if the round pinhole is changed to a triangular pinhole to image a lit candle, the image on the screen is:
- A. Circular
- B. Triangular
- C. Candle-shaped
- D. Unable to form an image
6. If the object height $h=10cm$, object distance $u=20cm$, and image distance $v=40cm$, then the image height $h'$ is:
- A. 10 cm
- B. 20 cm
- C. 5 cm
- D. 40 cm
7. To get a clearer image, how should the pinhole be adjusted?
- A. Drill it as large as possible
- B. Drill it as small as possible (without causing diffraction)
- C. The shape must be round
- D. The shape must be square
8. There are often many small circular light spots on the ground under the shade of trees, which are:
- A. Shadows of leaves
- B. Shadows of the sun
- C. Pinhole images of the sun
- D. Shapes of the gaps between leaves
9. If the screen is moved away from the pinhole (increasing image distance $v$), how will the brightness and size of the image change?
- A. Brighter, larger
- B. Dimmer, larger
- C. Brighter, smaller
- D. Dimmer, smaller
10. True or False: When the human eye sees an object, the image formed on the retina is an inverted real image, which is similar to the principle of pinhole imaging.
- True
- False