The locus of a point which moves such that the sum of the squares of its distance from three vertices of a triangle is constant is a/an |
|||||||
a) |
Circle |
b) |
Straight line |
c) |
Ellipse |
d) |
None of these |
The locus of a point which moves such that the sum of the squares of its distance from three vertices of a triangle is constant is a/an |
|||||||
a) |
Circle |
b) |
Straight line |
c) |
Ellipse |
d) |
None of these |
(a)
Let and
be the vertices of the triangle
, and let
be any point on the locus
Then, (constant)
So, locus of is
Where constant
The energy stored per unit volume in copper wire, which produces longitudinal strain of 0.1% is |
|||||||
a) |
|
b) |
|
c) |
|
d) |
|
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