কীভাবে Thin Lens গণনা করবেন
Thin Lens কি?
Thin lens equation relates object distance, image distance, and focal length. It's fundamental to cameras, microscopes, telescopes, and corrective lenses.
সূত্র
The calculator applies 1/f = 1/s_o + 1/s_i
- f
- 1/s_o + 1/s_i — 1/s_o + 1/s_i
ধাপে ধাপে নির্দেশিকা
- 1Enter any two of: object distance (s_o), image distance (s_i), or focal length (f)
- 2The calculator applies 1/f = 1/s_o + 1/s_i
- 3Results show lens behavior and image characteristics
সমাধান করা উদাহরণ
ইনপুট
s_o = 30 cm, f = 10 cm
ফলাফল
s_i = 15 cm, magnification = 0.5×
Real inverted image
এড়ানোর সাধারণ ভুল
- ✕Confusing sign conventions for distances and focal lengths
- ✕Using lens equations without considering real vs. virtual images
সচরাচর জিজ্ঞাসা
When do you get virtual images?
Virtual images form when the object is closer than the focal point (s_o < f); the image appears upright and magnified.
What's the difference between converging and diverging lenses?
Converging (convex) lenses have positive focal length and form real images; diverging (concave) lenses have negative focal length and only form virtual images.
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