Search for: An ellipse has OB as a semi-minor axis, F, F’ as its foci and the angle ∠FBF′ is a right angle. Then the eccentricity of the ellipse is An ellipse has OB as a semi-minor axis, F, F' as its foci and the angle ∠FBF′ is a right angle. Then the eccentricity of the ellipse is A23B12C35Dnone Fill Out the Form for Expert Academic Guidance!l Grade ---Class 1Class 2Class 3Class 4Class 5Class 6Class 7Class 8Class 9Class 10Class 11Class 12 Target Exam JEENEETCBSE +91 Preferred time slot for the call ---9 am10 am11 am12 pm1 pm2 pm3 pm4 pm5 pm6 pm7 pm8pm9 pm10pm Please indicate your interest Live ClassesBooksTest SeriesSelf Learning Language ---EnglishHindiMarathiTamilTeluguMalayalam Are you a Sri Chaitanya student? NoYes Verify OTP Code (required) I agree to the terms and conditions and privacy policy. Solution:We have ∠FBF′=π2∴ FF′2=FB2+F′B2⇒ (2ae)2=a2+a2 ∵x-coordinate of B is zero ∴FB=a−e×0 and F′B=a+e×0⇒ 4e2=2⇒e=12 Related content CBSE Class 11 English Core Writing and Grammar – Tenses Worksheet Top 10 Maths Project for Class 6 Class 10 Maths MCQs How to Download NTA NEET Admit Card 2024 Rashi And Nakshatra Quiz CBSE MCQ for Class 10 Science Genes – Definition, Structure, Diagram and its Types Octal to Binary Converter Km to cm Conversion mm to km Conversion