MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>VERY SHORT ANSWER TYPE QUESTIONS (VSAQs)>Q 19

EASY

10th CBSE

IMPORTANT

Earn 100

If $r_{1}$ and $r_{2}$ denote the radii of the circular bases of the frustum of a cone such that $r_{1} > r_{2}$ , then write the ratio of the height of the cone of which the frustum is a part to the height of the frustum.

Important Questions on Surface Areas and Volumes

EASY

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 1

How many balls, each of radius

1 cm

can be made from a solid sphere of lead of radius

8 cm ?

EASY

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 2

How many spherical bullets each of

5 cm

in diameter can be cast from a rectangular block of metal

11 dm \times 1 m \times 5 dm

?

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>EXERCISE 14.1>Q 3

A spherical ball of radius

3 cm

is melted and recast into three spherical balls. The radii of the two of the balls are

1.5 cm

and

2 cm

respectively. If the diameter of the third ball is

D cm

, then find the value of

D

.

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 9

If the radii of the circular ends of a bucket of height $40 cm$ are of lengths $35 cm$ and $14 cm$ , then the volume of the bucket in cubic centimeters is $(Take π = 22 / 7)$

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 16

The curved surface area of a right circular cone of height

15 cm

and base diameter

16 cm

is

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 40

If four times the sum of the areas of two circular faces of a cylinder of height

8 cm

is equal to twice the curve surface area, then diameter of the cylinder is

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 44

The number of solid spheres, each of diameter

6 cm

that can be made by melting a solid metal cylinder of height

45 cm

and diameter

4 cm

is

MEDIUM

10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 14 - Surface Areas and Volumes>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 46

A right circular cylinder of radius

r

and height

h (h > 2 r)

just encloses a sphere of diameter.