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👓 Spectacle Power Trainer
Sawaal
1
Sahi
0
Galat
0
Streak
0
Kaunsa defect hai?
Myopia
Hypermetropia
Kaunsa lens chahiye?
Concave
Convex
Lens ki focal length f (cm, chinh ke saath)
Lens ka power P (dioptre, chinh ke saath)
💡 Do dashamlav tak theek hai. Chinh (+ / −) zaroor lagao — wahi asli imtihaan hai.
✓ Jawab jaancho
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