1. In this experiment, if the candle is 15cm from the mirror ($u = 15$), how far is its image from the mirror?
- A. $7.5cm$
- B. $15cm$
- C. $30cm$
- D. Cannot be determined
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Plane Mirror Imaging - Quiz
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In this experiment, if the candle is 15cm from the mirror (u=15), how far is its image from the mirror?
Plane Mirror Imaging - Quiz - Quiz Questions
Test your understanding of plane mirror imaging laws and the concept of virtual images through the following exercises.
2. When the candle moves 5cm towards the plane mirror, the size of the image will:
- A. Become larger
- B. Become smaller
- C. Remain unchanged
- D. First become larger then smaller
3. In the ray diagram of plane mirror imaging, the image formed by the intersection of the backward extensions of reflected rays is:
- A. Real image
- B. Virtual image
- C. Inverted image
- D. Magnified image
4. If you walk vertically towards a plane mirror at a speed of $1 m/s$, your image's speed relative to you is:
- A. $1 m/s$
- B. $0.5 m/s$
- C. $2 m/s$
- D. $0 m/s$
5. To see your full-body image in a plane mirror on the wall, the length of the mirror must be at least:
- A. Same height
- B. Half
- C. One-third
- D. One-quarter
6. A person with a height of $1.6m$ stands $2m$ in front of a plane mirror. How far is his image from him?
- A. $2m$
- B. $3.2m$
- C. $4m$
- D. $1.6m$
7. A beam of light hits a plane mirror perpendicularly. If the direction of the incident ray remains unchanged and the plane mirror is rotated by an angle $\theta$, the angle rotated by the reflected ray is:
- A. $\theta$
- B. $2\theta$
- C. $\theta / 2$
- D. $0$
8. Why do precision optical instruments typically use "First Surface Mirrors" instead of ordinary back-silvered glass mirrors?
- A. For better aesthetics
- B. To prevent ghosting
- C. For better wear resistance
- D. To save costs
9. When a person stands in front of a plane mirror and moves backward, the size of his image in the mirror:
- A. Becomes larger
- B. Becomes smaller
- C. Remains unchanged
- D. First becomes smaller then larger
10. True or False: A virtual image formed by a plane mirror can also be captured by a camera.
- True
- False