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Recent questions tagged surface areas and volumes of a sphere
+3
votes
1
answer
A hollow sphere of internal and external radii 2 cm and 4 cm respectively is melted into a cone of base radius 4 cm.
asked
Apr 7, 2019
in
Class 10
by
kratos
surface areas and volumes of a sphere
surface areas and volumes
class-10
class-9
+2
votes
0
answers
Find the surface area of a sphere of radius : (i) 10.5 cm (ii) 5.6 cm
asked
Apr 6, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
surface area and volume of a sphere
surface areas and volumes
class-9
+3
votes
1
answer
A cone and a hemisphere have equal bases and equal volumes. Find the ratio of their heights.
asked
Apr 4, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
+2
votes
1
answer
Determine the value of g at the bottom of an ocean 7km deep Given that radius of earth is 6370 km
asked
Mar 23, 2019
in
JEE
by
kratos
surface areas and volumes of a sphere
class-11
jee
class-9
simple harmonic motion
jee mains
hydrosphere
gravitation
heat
+1
vote
0
answers
The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
asked
Mar 21, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
surface areas and volumes
class-9
+3
votes
1
answer
A hemisphere of lead of radius 7 cm is caused into a right circular cone of height 49 cm find the radius of the base
asked
Mar 18, 2019
in
Class 10
by
kratos
class-10
surface areas and volumes of a sphere
surface areas and volumes
class-9
volume and surface area of solids
+3
votes
1
answer
The surface area of a sphere is 5544 cm^2 , find its diameter
asked
Mar 16, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
+3
votes
1
answer
A cone and a hemisphere have equal bases and equal volumes. Find the ratio of their heights.
asked
Mar 16, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
surface area and volume of a sphere
class-9
+2
votes
1
answer
(a) The earth-moon distance is about 60 earth radius. What will be the diameter of the earth (approximately in degrees) as seen from the moon?
asked
Mar 14, 2019
in
Class 11
by
kratos
volume and surface area of solids
surface areas and volumes of a sphere
class-11
class-9
surface areas and volumes
units and measurements
+2
votes
1
answer
The dome of a building is in the form of a hemisphere. Its radius is 63 dm. Find the cost of painting it at the rate of Rs. 2 per sq m.
asked
Mar 12, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
surface areas and volumes
+2
votes
1
answer
The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
asked
Mar 11, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
surface areas and volumes
+2
votes
0
answers
A cone and a hemisphere have equal bases and equal volumes. Find the ratio of their heights.
asked
Mar 10, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
surface area and volume of a sphere
class-9
+1
vote
1
answer
Find the volume of a sphere whose diameter is: 2.1 m
asked
Mar 8, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
+2
votes
1
answer
What is the full form of DM ?
asked
Mar 7, 2019
in
Class 10
by
kratos
class-8
surface areas and volumes of a sphere
class-9
class-10
surface areas and volumes
+2
votes
1
answer
A hollow sphere of internal and external radii 2 cm and 4 cm respectively is melted into a cone of base radius 4 cm.
asked
Mar 5, 2019
in
Class 10
by
kratos
surface areas and volumes of a sphere
class-9
surface areas and volumes
class-10
+1
vote
1
answer
A vessel in the form of a hemispherical bowl is full of water. Its contents are emptied in a right circular cylinder.
asked
Mar 4, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
+1
vote
1
answer
If the radius of a sphere is doubled, what is the ratio of the volume of the first sphere to that of the second sphere?
asked
Feb 26, 2019
in
Class 9
by
kratos
surface areas and volumes of a sphere
class-9
+1
vote
1
answer
A particle P will be stationary with respect to bowl inside a hemispherical bowl of radius 0.5 m at a height 0.2 m from the bottom.
asked
Feb 16, 2019
in
JEE
by
kratos
volume and surface area of solids
surface areas and volumes of a sphere
jee
mechanics
class-9
jee mains
+2
votes
1
answer
A hemispherical bowl is made of steel, 0.25 cm thick. The inner radius of the bowl is 5 cm. Find the outer curved surface area of the bowl.
asked
Feb 6, 2019
in
Class 10
by
kratos
volume and surface area of solids
surface areas and volumes of a sphere
class-9
class-10
surface areas and volumes
+2
votes
1
answer
How many spherical lead shots of diameter 4 cm can be made out of a solid cube of lead whose edge measures 44 cm.
asked
Feb 6, 2019
in
Class 10
by
kratos
surface areas and volumes of a sphere
ncert
class-9
class-10
surface areas and volumes
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