Human eye and its defects (myopia, hypermetropia)
A model eye with adjustable lens power: myopia (image in front of the retina) is corrected by a diverging lens, hypermetropia by a converging lens and presbyopia by bifocals; find the far/near point and power of the corrective lens.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 9. Ray Optics and Optical Instruments |
| NCERT section | 9.7 (eye) |
| Level | NCERT level |
| Time | about 12 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: human eye · myopia · hypermetropia · presbyopia · corrective lens · far point · near point
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