Question
Download Solution PDFवक्र \(\rm x = \frac{y^2}{21}\) के नाभिलंब की लम्बाई क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
केंद्र पर शीर्ष और X - अक्ष के साथ परवलय का समीकरण: y2 = 4ax,
नाभिलंब की लम्बाई = 4a
गणना:
परवलय का मानक रूप: y2 = 4ax ....(1)
हमारे पास निम्न हैं, \(\rm x = \frac{y^2}{21}\) \(\Rightarrow \rm y^2=21x\)
दिए गए समीकरण \(\rm y^2=21x\) की तुलना समीकरण (1) के साथ करने पर, हमें निम्न प्राप्त होता है,
4a = 21
∴ नाभिलंब की लम्बाई 21 इकाई है।
अतः विकल्प (2) सही है।
Last updated on Jul 11, 2025
->Indian Airforce Agniveer (02/2026) Online Form Link has been activated at the official portal. Interested candidates can apply between 11th July to 31st July 2025.
->The Examination will be held 25th September 2025 onwards.
-> Earlier, Indian Airforce Agniveer Group X 2025 Last date had been extended.
-> Candidates applied online from 7th to 2nd February 2025.
-> The online examination was conducted from 22nd March 2025 onwards.
-> The selection of the candidates will depend on three stages which are Phase 1 (Online Written Test), Phase 2 ( DV, Physical Fitness Test, Adaptability Test), and Phase 3 (Medical Examination).
-> The candidates who will qualify all the stages of selection process will be selected for the Air Force Group X posts & will receive a salary ranging of Rs. 30,000.
-> This is one of the most sought jobs. Candidates can also check the Airforce Group X Eligibility here.