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Let the equations of two ellipses be E1=...

Let the equations of two ellipses be `E_1=x^2/3+y^2/2=1 and x^2/16+y^2/b^2=1`.If the product of their eccentricities is `1/2`, then the length of the minor axis of ellipse `E_2` is

A

8

B

9

C

4

D

2

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The correct Answer is:
C
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