Graduate Aptitude Test in Engineering (GATE) is an all India examination that primarily tests the comprehensive understanding of various undergraduate subjects in Engineering and Technology.
GATE Result: IIT Kharagpur will release the GATE Scorecard online on its official website. GATE 2023 results has been released on Mar 16, 2023. GATE scorecards 2023 will be available on the official portal from Mar 21, 2023, till a particular date. The GATE Exam 2023 cutoff for all papers has been released along with … Read more
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
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