Applications of Derivatives  MCQs

MCQs of Applications of Derivatives

Showing 1 to 10 out of 152 Questions
1.
The distance s moved by a particle in time t is given by s=t3-6t2+6t+8. When the acceleration is zero, the velocity is_____.
(a) 5 cm/sec
(b) 2 cm/sec
(c) 6 cm/sec
(d) -6 cm/sec
Answer:

Option (d)

2.
The volume of a sphere is increasing at the rate of π cm3/sec. The rate at which the radius is increasing is_____, when the radius is 3cm.
(a) 136 cm/sec
(b) 36 cm/sec
(c) 9 cm/sec
(d) 27 cm/sec
Answer:

Option (a)

3.
f(x)=xx decreases in_____
(a) (0, e)
(b) 0, 1e
(c) (0, 1)
(d) (0, )
Answer:

Option (b)

4.
f(x) = 2|x-2|+3|x-4| is_____in (2, 4).
(a) decreasing
(b) increasing
(c) constant
(d) cannot be decided
Answer:

Option (a)

5.
f(x) = x7+ 5x3+ 125 is_____
(a) decreasing in (0, )
(b) decreasing in (-, 0)
(c) increasing on R
(d) neither increasing nor decreasing in R
Answer:

Option (c)

6.
The local maximum value of f(x) = x + 1x is _____
(a) 2
(b) -2
(c) 4
(d) -4
Answer:

Option (b)

7.
The local minimum value of xlog x is _____
(a) -1
(b) 0
(c) 1e
(d) e
Answer:

Option (d)

8.
f(x)=2x+cot-1x-log x+1+x2 is_____
(a) decreasing on (-, 0)
(b) decreasing on (0, )
(c) constant
(d) increasing on R
Answer:

Option (d)

9.
The local minimum value of f(x)=x2+4x+5 is _____
(a) 2
(b) 4
(c) 1
(d) -1
Answer:

Option (c)

10.
The maximum value of f(x)=5cosx+12sinx is _____
(a) 13
(b) 12
(c) 5
(d) 17
Answer:

Option (a)

Showing 1 to 10 out of 152 Questions