Last Updated On [03-11-2023]
If 
and 
then 
equals
a)
b)
c)
d)
If and then equals
a)
b)
c)
d)
Question ID - 55934 :-
If and then equals
a)
b)
c)
d)
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If |
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a) |
|
b) |
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c) |
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d) |
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(c)
The ellipse can be written as
Here 
Now, 
Foci of the ellipse are 
, i.e. 
and 
are foci of the ellipse.
Therefore, we have 
for every point 
on the ellipse
Next Question :
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When a spring is stretched by a distance |
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a) |
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b) |
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c) |
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d) |
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, it exerts a force, given by 
. The work done, when the spring is stretched from 
to 
is
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