Compound microscope and telescopes
Ray diagrams of a compound microscope (m = (L/f_o)(D/f_e)), an astronomical refracting telescope (m = f_o/f_e) and a Galilean telescope; change focal lengths and see magnification, tube length and the final image.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 9. Ray Optics and Optical Instruments |
| NCERT section | 9.7 |
| 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: microscope · telescope · magnifying power · optical instruments · objective · eyepiece
More from this chapter
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- Focal length of a concave lens (lens-combination method)
- Human eye and its defects (myopia, hypermetropia)
- Convex and concave lenses, lens maker's formula
- Concave and convex mirrors: image formation
- Optical fibre: acceptance angle, numerical aperture and dispersion
- Prism: deviation curve and dispersion
- Rainbow: refraction and internal reflection in a water drop