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Last Updated: April 22, 2026 | This article has been updated with the latest information for 2026. Key Takeaways JEE Main Result Link 2026 Steps To Check NTA JEE Main Result 2026 Result Declaration Timeline 2026 JEE Main Paper 2 Result 2026 (B.Arch & B.Plan) – Inter-se Merit Read more: JEE Main — Complete Guide … Read more
Last Updated: February 10, 2026 | This article has been updated with the latest information for 2026. Table of Contents How To Fill The IIT JEE Advanced Application Form 2026? IIT JEE Advanced Application Fee 2026 IIT JEE Advanced Dates 2026 Must-Read – IIT JEE Advanced Preparation Tips 2026 FAQs on IIT JEE Advanced Application … Read more
1 UNIT – 2 WAVE OPTICS Unit-02/Lecture-01 FRESNEL BIPRISM:- Fresnel’s biprism is made by joining two thin prisms at their base to create a single triangular shape. Light from single slit S forms spherical waves incident on the biprism. Light passing through the lower section is refracted up, while light going into the top section is refracted down, forming a region where the beams interfere. This creates two virtual sources S 1 and S 2 , with an apparent separation a. A biprism is essentially two prisms, each of very small refractive angle α placed base to base. In reality the biprism is constructed from a single plate of glass by suitable grinding and polishing it; the obtuse angle of the prism is only slightly less than 180° and the other angles is of the order of 30’ are equal. … Read more