06-26-2025, 01:20 PM
The following notes on Physics Chapter 2 Lenses are designed to provide a comprehensive understanding of lenses, their properties, image formation, and applications, tailored for examination preparation. The content is structured with explanations, tables, comparisons, and key points to facilitate effective learning.
For short look into the notes ..
Lenses are transparent media with two refracting surfaces, at least one of which is curved (part of a sphere). They are used to converge or diverge light rays, enabling applications in devices like
telescopes, microscopes, spectacles, and cameras.
• Key Question: How do lenses, such as those in telescopes, make distant objects appear distinct and close?
• Applications of Lenses:
o Toys
o Spectacles
o Door lenses (for viewing outside)
o Cameras
o Microscopes
o Telescopes
Difference Between Lenses and Glass Sheets
• Glass Sheet: When sunlight passes through a thin glass sheet, the size of the illuminated area on paper remains constant regardless of the distance between the sheet and paper.
• Lens: A lens, when held at a specific distance, reduces the illuminated area significantly, increasing light intensity, and can even cause paper to smolder or catch fire due to concentrated light.
For detailed notes on 10th std Phyics Ch 2 Lenses click here
Kerala SSLC Physics Chapter 2 Lenses- Class notes.pdf (Size: 57.14 KB / Downloads: 24)
For short look into the notes ..
Lenses are transparent media with two refracting surfaces, at least one of which is curved (part of a sphere). They are used to converge or diverge light rays, enabling applications in devices like
telescopes, microscopes, spectacles, and cameras.
• Key Question: How do lenses, such as those in telescopes, make distant objects appear distinct and close?
• Applications of Lenses:
o Toys
o Spectacles
o Door lenses (for viewing outside)
o Cameras
o Microscopes
o Telescopes
Difference Between Lenses and Glass Sheets
• Glass Sheet: When sunlight passes through a thin glass sheet, the size of the illuminated area on paper remains constant regardless of the distance between the sheet and paper.
• Lens: A lens, when held at a specific distance, reduces the illuminated area significantly, increasing light intensity, and can even cause paper to smolder or catch fire due to concentrated light.
For detailed notes on 10th std Phyics Ch 2 Lenses click here
Kerala SSLC Physics Chapter 2 Lenses- Class notes.pdf (Size: 57.14 KB / Downloads: 24)