APPLICATION OF DIFFERENTIATION
TEST 1 : Choose the correct option
NAME OF THE STUDENT *
NAME OF KV *
CLASS *
SECTION *
1. The volume of a sphere is increasing at 3 cm^3/sec. The rate at which the radius increases when radius is 2cm, is *
1 point
2. In a sphere the rate of change of surface area is *
1 point
3. If there is an error of a% in measuring the edge of a cube , then percentage error in its surface is *
1 point
4. If s=t^3-4t^2+5 describes the motion of a particle , then its velocity when the acceleration vanishes, is *
1 point
5. The circumference of a circle is measured as 28cm with an error of 0.01cm. The percentage error in the area is *
1 point
6. While measuring the side of an equilateral triangle an error of k% is made , the percentage error in its area is *
1 point
7. The equation to the normal to the curve y=sinx at (0,0) is *
1 point
8. The point on the curve y^2=x where tangent makes 45 degree angle with x-axis is *
1 point
9. The normal at the point (1,1) on the curve 2y+x^2 =3 is *
1 point
10. If the function f(x)=x^3-9kx^2+27x+30 is increasing on R , then *
1 point
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