Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If the common chord of the circles 
and 
subtend a right angle at the origin, then λ λ is equal to
A
4
B
C
D
8
Text Solution
Verified by ExpertsThe correct answer is:
C
The common chord of given circles is 
i.e., 
( 
0)
The pair of straight lines joining the origin to the points of intersection of 
and 
is
.
These lines are at right angles if 
, i.e.,
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