As the glass lens of refractive index n = 1.45 disappears when immersed in a liquid, hence refractive index of liquid must be same as that of lens. ∴ Refractive index of liquid = 1.45. Class 12 Physics Chapter 9 ...
Category: Class 12 Physics
NCERT Solutions for Class 12 Physics updated for CBSE academic session 2021-2022.
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Infinite (or power is zero). Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
Focal length of the given lens increases in accordance with lens maker’s formula 1/f =(n-1)(1/R1 -1/R2) because Ngw <nga. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
When refractive index of liquid is exactly same as the refractive index of glass. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.
Focal length of a lens for red light is more than that for blue light. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.