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There is a cylindrical electric geyser with height 1·5 m and diameter 35 cm. Ignoring the thickness of its well, calculate its external lateral surface area.
- a)11200 cm2
- b)13200 cm2
- c)12100cm2
- d)9600 cm2
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
There is a cylindrical electric geyser with height 1·5 m and di...
Area of the external lateral surface of the geyser = 2π R. H.
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There is a cylindrical electric geyser with height 1·5 m and di...
Calculation of External Lateral Surface Area of Electric Geyser
Given Data:
- Height of the cylinder (h) = 1.5 m
- Diameter of the cylinder (d) = 35 cm
Conversion of Units:
- Convert the diameter from cm to m: 35 cm = 0.35 m
Calculation of Radius:
- Radius (r) = Diameter / 2 = 0.35 m / 2 = 0.175 m
Calculation of External Lateral Surface Area:
- External Lateral Surface Area of a cylinder = 2πrh
- Substitute the values: 2 * π * 0.175 m * 1.5 m
- External Lateral Surface Area = 2 * 3.14159 * 0.175 m * 1.5 m
- External Lateral Surface Area ≈ 1.653 m²
Conversion to Square Centimeters:
- Convert the area from m² to cm²: 1.653 m² * 10000 = 16530 cm²
Therefore, the external lateral surface area of the electric geyser is approximately 16530 cm², which is closest to option B (13200 cm²).
Given Data:
- Height of the cylinder (h) = 1.5 m
- Diameter of the cylinder (d) = 35 cm
Conversion of Units:
- Convert the diameter from cm to m: 35 cm = 0.35 m
Calculation of Radius:
- Radius (r) = Diameter / 2 = 0.35 m / 2 = 0.175 m
Calculation of External Lateral Surface Area:
- External Lateral Surface Area of a cylinder = 2πrh
- Substitute the values: 2 * π * 0.175 m * 1.5 m
- External Lateral Surface Area = 2 * 3.14159 * 0.175 m * 1.5 m
- External Lateral Surface Area ≈ 1.653 m²
Conversion to Square Centimeters:
- Convert the area from m² to cm²: 1.653 m² * 10000 = 16530 cm²
Therefore, the external lateral surface area of the electric geyser is approximately 16530 cm², which is closest to option B (13200 cm²).
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There is a cylindrical electric geyser with height 1·5 m and diameter 35 cm. Ignoring the thickness of its well, calculate its external lateral surface area.a)11200 cm2b)13200 cm2c)12100cm2d)9600 cm2Correct answer is option 'B'. Can you explain this answer?
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There is a cylindrical electric geyser with height 1·5 m and diameter 35 cm. Ignoring the thickness of its well, calculate its external lateral surface area.a)11200 cm2b)13200 cm2c)12100cm2d)9600 cm2Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about There is a cylindrical electric geyser with height 1·5 m and diameter 35 cm. Ignoring the thickness of its well, calculate its external lateral surface area.a)11200 cm2b)13200 cm2c)12100cm2d)9600 cm2Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There is a cylindrical electric geyser with height 1·5 m and diameter 35 cm. Ignoring the thickness of its well, calculate its external lateral surface area.a)11200 cm2b)13200 cm2c)12100cm2d)9600 cm2Correct answer is option 'B'. Can you explain this answer?.
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