Chapter 10: Ordinary Differential Equations - Online Test

Q1. Integrating factor of the differential equation  is 
Answer : Option A
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Q2. The population P in any year t is such that the rate of increase in the population is proportional to the population. Then
Answer : Option A
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Q3. P is the amount of certain substance left in after time t. If the rate of evaporation of the substance is proportional to the amount remaining, then
Answer : Option B
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Q4. If the solution of the differential equation  represents a circle, then the value of a is
Answer : Option B
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Q5. The slope at any point of a curve y = f (x) is given by dy/dx = 3x2 and it passes through (-1,1). Then the equation of the curve is
Answer : Option A
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