Question
Download Solution PDFএকটি মাধ্যমের প্রতিসরাঙ্ক হল _____ এর অনুপাত।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রতিসরাঙ্ক: একটি শূন্যস্থানে আলোর গতির সাথে একটি মাধ্যমের আলোর গতির অনুপাতকে সেই মাধ্যমের প্রতিসরাঙ্ক বলে। একে পরম প্রতিসরাঙ্কও বলা হয়।
\({\rm{Refractive\;index\;}}\left( \mu \right) = {\rm{\;\;}}\frac{{Speed\;of\;light\;in\;vaccum\left( C \right)}}{{Speed\;of\;light\;in\;a\;medium\left( v \right)}}\)
আপেক্ষিক প্রতিসরাঙ্ক: যখন একটি আলোক রশ্মি একটি মাধ্যম (শূন্য ব্যতীত) থেকে অন্য মাধ্যমে যায় তখন প্রতিসরাঙ্কের মানটিকে একটি আপেক্ষিক প্রতিসরাঙ্ক বলা হয়।
\({\rm{Refractive\;index\;of\;medium\;}}1{\rm{\;with\;respect\;to\;medium\;}}2{(n_{21})} = {\rm{\;}}\frac{{\;refractive\;index\;of\;medium\;1 {(n_1)}}}{{\;Refractive\;index\;of\;medium\;2{(n_2)}}}\)
Last updated on Jun 11, 2025
-> The RRB NTPC Admit Card 2025 has been released on 1st June 2025 on the official website.
-> The UPSC Prelims Result 2025 and UPSC IFS Result 2025 has been released @upsc.gov.in
-> Railway Recruitment Board activated the RRB ALP application form 2025 correction link, candidates can make the correction in the application form till 31st May 2025.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The Railway Recruitment Board (RRB) has released the official RRB ALP Notification 2025 to fill 9,970 Assistant Loco Pilot posts.
-> The official RRB ALP Recruitment 2025 provides an overview of the vacancy, exam date, selection process, eligibility criteria and many more.
->The candidates must have passed 10th with ITI or Diploma to be eligible for this post.
->The RRB Assistant Loco Pilot selection process comprises CBT I, CBT II, Computer Based Aptitude Test (CBAT), Document Verification, and Medical Examination.
-> This year, lakhs of aspiring candidates will take part in the recruitment process for this opportunity in Indian Railways.
-> Serious aspirants should prepare for the exam with RRB ALP Previous Year Papers.
-> Attempt RRB ALP GK & Reasoning Free Mock Tests and RRB ALP Current Affairs Free Mock Tests here