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Question

The degree and order of the differential equation of all parabolas whose axis is X-axis are

A
2,1
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B
1,2
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C
3,2
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D
None of these
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Solution

The correct option is A 1,2
The equation of all parabolas whose axis is X-axis is given by y2=4a(xh)
On differentiating w.r.t x we get
2yy1=4a
y21+yy2=0
Which is the differential equation of order 2 and degree 1.

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