Download CBSE Class Physics 12 Pre-Board Sample Papers 2025–26 with solutions for all subjects in free PDF format. These papers are curated by experts as per the latest CBSE syllabus and exam pattern.

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Electron microscopy uses a beam of electrons to illuminate a sample and achieve much higher spatial resolution than light microscopy. Transmission electron microscopy generates an image of the ...

Confocal microscopy is an optical imaging technique that scans a focused point of light around a sample to reconstruct an image in a point-by-point manner. A pinhole is used in the detection path to ...