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Explain the meaning of the terms focus and focal length in case of a convex mirror, with the help of a suitable ray diagram.
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optics - What is the actual significance of the focal point of a lens? - Physics Stack Exchange
Lens Focal Length and F-stop | Digital Camera Know-Hows | Digital Camera | Digital AV | Support | Panasonic Global
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Focal length, explained by RP Photonics Encyclopedia; focal distance, dioptric power, curved mirror, lens equation, microscope, photographic objective, focus, beam radius
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Focal Length | Understanding Camera Zoom & Lens Focal Length | Nikon | Nikon
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What is Focal Length in Photography? - Focal Length Explained
Focus (optics) - Wikipedia
What Is Focal Length: Pro Guide To Using Camera Lenses • Filmmaking Lifestyle
Focus (optics) - Wikipedia
What is Focal Length in Photography?
Lesson 4 Define the terms principal axis, focal point, focal length and linear magnification as applied to a converging (convex) lens. Define the power. - ppt download
The human eye
Focal Point defined | Focal point, Emphasis, Visual
