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A ray of light coming from origin after ...

A ray of light coming from origin after reflectiion at the point `P (x ,y)` of any curve becomes parallel to x-axis, the , equation of the curve may be :

A

`y^(2) = x `

B

`y^(2) = 2x + 1 `

C

`y^(2)= 4x `

D

`y^(2) = 4x +1`

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The correct Answer is:
B
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DISHA PUBLICATION-DIFFERENTIAL EQUATIONS -Exercise-2 : Concept Applicator
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  5. If y=(x+sqrt(1+x^2))^n then (1+x^2)(d^2y)/(dx^2)+x(dy)/(dx)

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  6. The solution of differential equation x y^(prime)=x((y^2)/(x^2)+(f((y^...

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  7. The solution of the differential equation (dy)/(dx)=(1-3y-3x)/(1+x+y) ...

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  8. The solution of the equation (dy)/(dx)=((y^(2) -y-2))/(x^(2) + 2x+3) i...

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  9. The solution of differential equation (dy)/(dx) = e^(x-y) + x^(2)e^(-y...

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  10. Let f be a non-negative function defined on the interval [0,1]. If int...

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  11. Solution of the differential equation (1+e^(x/y))dx + e^(x/y)(1-x/y)dy...

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  12. In a culture, the bacteria count is 1,00,000. The number is increas...

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  13. The solution of the differential equation (dy)/(dx)=(4x+y+1)^(2), is

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  14. The solution of the differential equation x^(3)(dy)/(dx)+4x^(2) tany=e...

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  15. Solution of the differential equation ((x+y-1)/(x+y-2))(dy)/(dx)=((x+y...

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  16. Solve (1+e^((x)/(y)))dx + e^((x)/(y)) (1-(x)/(y))dy = 0

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  17. The function f(x) satisfying the equation f^2 (x) + 4 f'(x) f(x) + (...

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  18. v34

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  19. Solve: dy/dx=(y f\'(x)-y^2)/f(x), where f(x) is a given function of x

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  20. The solution of the differential equation (x+y)^(2)(dy)/(dx) = a^(2...

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