Class 12 Physics – Page 51 – Discussion Forum

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Category: Class 12 Physics

NCERT Solutions for Class 12 Physics updated for CBSE academic session 2021-2022.

Dev Dhawan

Asked: January 8, 2025In: Class 12 Physics

On what factors does the angle of minimum deviation produced by a prism depend?

On the material of the prism and the wavelength of light used. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

Dev Dhawan

Asked: January 8, 2025In: Class 12 Physics

A concave mirror of 20 cm focal length is immersed into water. What is its new focal length?

Focal length of concave mirror even in water is same at 20 cm. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

Dev Dhawan

Asked: January 8, 2025In: Class 12 Physics

A lens of focal length f is splitted into two parts. What is the focal length of either part?

Focal length of each part is same as that of original lens. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

Dev Dhawan

Asked: January 8, 2025In: Class 12 Physics

The focal length of a biconvex lens is equal to the radius of curvature of either face. What is the refractive index of the lens material?

n = 1.5. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

Dev Dhawan

Asked: January 8, 2025In: Class 12 Physics

What is the minimum distance, in terms of focal length of lens, between an object and its real image formed by a convex lens?

Four times the focal length of the lens. Class 12 Physics Chapter 9 Ray Optics and Optical Instruments Session 2024-2025.

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