# 10th Class Physics Chapter 3 (12) Important Long Questions 2024

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## Class 10 Physics Chapter 12 Important Long Questions

• A man raises his left hand in a plane mirror, the image facing him is raising his right hand. Explain why.
• In your own words, explain why light waves are refracted at a boundary between two materials.
• Explain why a fish underwater appears to be at a different depth below the surface than it actually is. Does it appear deeper or shallower?
• Why or why not concave mirrors are suitable for makeup?
• Why is the driver’s side mirror in many cars convex rather than plane or concave?
• When an optician’s testing room is small, he uses a mirror to help him test the eyesight of his patients. Explain why.
• How does the thickness of a lens affect its focal length?
• Under what conditions will a converging lens form a virtual image?
• Under what conditions will a converging lens form a real image that is the same size as the object?
• Why do we use a refracting telescope with a large objective lens of a large focal length?

### Conclusion

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