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The order and degree of the differential equation of parabolas having vertex at the origin and focus at (a, 0) where a 0 , are respectively.

Options

  1. A1,1
  2. B2,1
  3. C1,2
  4. D2,2

Correct answer

A. 1,1

Step-by-step solution

The eq. of parabolas having vertex at (0,0) & focus at (a, 0) , where (a 0) is : aligned & y^2=4 a x & 2 y d y d x =4 a aligned [on differentiating] On putting the value of (4a) in eq. (1) we get, gathered 2 x dy dx - y =0 in order =1 & degree =1 . gathered

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