Electric Field Due to a Dipole at a General Point in Space
If PSQ is a...
Question
If PSQ is a focal chord of the ellipse x2a2+y2b2=1,a>b, then the harmonic mean of SP and SQ is
A
b2a
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
a2b
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
2b2a
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
2a2b
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is Ab2a Since, length of semi latus rectum is harmonic mean of between the segment of any focal chord Therefore, H.M.=2(SP)(SQ)SP+SQ=b2a