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The height of a right circular cylind...

The height of a right circular cylinder is 6 m. If three times the sum of the areas of its two circular faces is twice the area of the curved surface, then the radius of its base is (a) 1 m (b) 2 m (c) 3 m (d) 4 m

A

4 m

B

3 m

C

2 m

D

1 m

Text Solution

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The correct Answer is:
A
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S CHAND IIT JEE FOUNDATION-VOLUME AND SURFACE AREA -Section B (Question Bank - 27)
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  2. A well 20 m in diameter is dug 14 m deep and the earth taken out is sp...

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  3. The height of a right circular cylinder is 6 m. If three times the ...

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  4. The ratio of the radii of two cylinders is 1:sqrt(3) and their heights...

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  5. If the radius of a right circular cylinder is decreased by 50% and its...

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  6. The radii of the bases of two cylinders are in the ratio 3 : 5 and ...

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  7. The diameter of the base of a cylindrical drum is 35 dm and its height...

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  8. If the diameter of a wire is decreased by 10% by how much per cent app...

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  10. The volume of a right circular cylinder can be obtained from its curve...

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  11. If the radius of a right circular cylinder open at both the ends is de...

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  12. It is required to fix a pipe such that water flowing through it at ...

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  13. A rectangular piece of paper is 24 cm long and 22 cm wide. A cylinder ...

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  14. A hollow right circular cylinder with height 8 cm and base radius 7 cm...

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  15. The magnitude of the volume of a closed right circular cylinder of uni...

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  16. A hollow cylindrical tube 20 cm long is made of iron and its external ...

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  17. What length of solid cylinder 2 cm in diameter must be taken to cas...

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  18. The volume of two cylinders are as a : b and their heights are c : d F...

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  19. The inner diameter of a circular building is 54 cm and the base of the...

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  20. The sum of the radius of the base and height of a solid cylinder is...

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