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3. A glass cylinder with radius 10 cm has water to a height of 9 cm. A metal cube of 8 cm edge is immersed in it completely. Calculate the height by which water will rise in the cylinder. Use =22/7
Asked by rajsingh94116633 | 04 May, 2022, 10:06: AM
answered-by-expert Expert Answer
Here, volume of cylinder = pi r2h
Let the water level rise by height h.
Volume space of space water space after space imerging space straight a space cube space equals space Volume space of space water space initially space plus space Volume space of space metal space cube Therefore comma space volume space of space displace space water space equals space volume space of space cube rightwards double arrow 22 over 7 cross times left parenthesis 10 right parenthesis squared cross times straight h equals 8 cubed rightwards double arrow straight h equals 1.6 space cm
Answered by Renu Varma | 04 May, 2022, 10:48: AM

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CBSE 10 - Maths
A golf ball is spherical with about 300 - 500 dimples that help increase its velocity while in play. Golf balls are traditionally white but available in colours also. In the given figure, a golf ball has diameter 4-2 cm and the surface has 315 dimples (hemi-spherical) of radius 2 mm. Based on the above, answer the following questions: (i) Find the surface area of one such dimple. (ii) Find the volume of the material dug out to make one dimple. Find the total surface area exposed to the surroundings.
Asked by swetalinasamantaray022 | 21 Mar, 2023, 04:16: PM
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CBSE 10 - Maths
3. A glass cylinder with radius 10 cm has water to a height of 9 cm. A metal cube of 8 cm edge is immersed in it completely. Calculate the height by which water will rise in the cylinder. Use =22/7
Asked by rajsingh94116633 | 04 May, 2022, 10:06: AM
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CBSE 10 - Maths
A conical tank with base radius 20 cm and height 40 cm is initially filled with water. Water drains through a small round hole at the bottom with a diameter of 1cm. Find an expression for the height of water in the tank at time t  
Asked by anitajoshi0912 | 22 Dec, 2021, 09:12: AM
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CBSE 10 - Maths
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Asked by gnarasimha626 | 24 May, 2021, 09:40: AM
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CBSE 10 - Maths
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CBSE 10 - Maths
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Asked by adithyakambli123 | 13 Mar, 2020, 07:29: PM
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CBSE 10 - Maths
Water is flowing through a cylindrical pipe of internal diameter of 2cm into a cylindrical tank of base radius 40 cm at a rate of 0.4 m/s. Determine the rise in water level in the tank in 1/2 hour 
Asked by adalroshan2464 | 10 Mar, 2020, 10:39: PM
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CBSE 10 - Maths
Water is flowing at the rate of 7m/s through a circular pipe whose internal diameter   is of 2 cm into a cylindrical tank , the radius of whose base is 40 cm . Determine the increse in water level in 1/2 hours.
Asked by adalroshan2464 | 10 Mar, 2020, 10:34: PM
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CBSE 10 - Maths
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Asked by shakilaalva31 | 18 Feb, 2020, 05:27: PM
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CBSE 10 - Maths
A wall 24m long, 0.4m thick and 6m high is constructed with the bricks each of dimensions 25cm×16cm×10cm. If the mortar occupies 1/10th of the volume of the wall,then find the number of bricks used in constructing the wall.
Asked by samarth8527 | 31 Jan, 2020, 03:12: AM
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