# NCERT Class 12-Mathematics: Chapter –9 Differential Equations Part 15

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**Question 59:**

The differential equation for which is a solution, is:

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 60:**

Family of curves will correspond to a differential equation of order

(A)

(B)

(C)

(D) Not defined

**Answer: (C)**

**Question 61:**

The general solution of

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 62:**

The curve for which the slope of the tangent at any point is equal to the ratio of the abscissa to the ordinate of the point is :

(A) An ellipse

(B) Parabola

(C) Circle

(D) Rectangular hyperbola

**Answer: (D)**

**Question 63:**

The general solution of the differential equation is:

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 64:**

The solution of the equation is:

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 65:**

The differential equation for which is a solution, is:

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 66:**

The solution of is :

(A)

(B)

(C)

(D)

**Answer: (D)**

**Question 67:**

The order and degree of the differential equation are

(A)

(B)

(C)

(D)

**Answer: (D)**