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GATE Answer Key 2023: GATE Answer Key 2023 was released today on GATE’s official website. You can check it and calculate your GATE 2023 score. The GATE 2023 Answer Key consists of the correct responses to the question asked in the GATE Exam 2023. Know how to calculate your GATE Score and how to download … Read more
JEE Result 2022-23: NTA will release the JEE Result after the JEE exam 2023 is successfully conducted. The JEE Main 2023 result for March is declared on March 24th. Due to the Covid-19, April and May’s sessions have been postponed. Their results will be declared after these sessions are conducted successfully. Check out the article to … 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