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A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:
a)Equal to 30 cm
b)less than 30 cm
c)cannot be perdicted
d)more than 30 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A steel tape is calibrated at 20° C. A piece of wood is being measured...
When heated the length between adjacent markings increases. Hence the actual length will be less than
30 cm.
30 cm.
Most Upvoted Answer
A steel tape is calibrated at 20° C. A piece of wood is being measured...
°C and has a length of 30 meters. If the tape is used at a temperature of 35°C, its length will increase due to thermal expansion. The amount of expansion can be calculated using the coefficient of linear expansion of steel, which is approximately 1.2 x 10^-5 per degree Celsius.
The difference in temperature between the calibration temperature and the in-use temperature is 35°C - 20°C = 15°C.
The increase in length of the tape can be calculated as follows:
ΔL = LαΔT
where ΔL is the change in length, L is the original length of the tape, α is the coefficient of linear expansion of steel, and ΔT is the difference in temperature.
Plugging in the values:
ΔL = (30 m) x (1.2 x 10^-5 per°C) x (15°C)
ΔL = 0.0054 m
Therefore, the steel tape will increase in length by approximately 0.0054 meters (or 5.4 millimeters) when used at a temperature of 35°C, compared to its calibrated length at 20°C.
The difference in temperature between the calibration temperature and the in-use temperature is 35°C - 20°C = 15°C.
The increase in length of the tape can be calculated as follows:
ΔL = LαΔT
where ΔL is the change in length, L is the original length of the tape, α is the coefficient of linear expansion of steel, and ΔT is the difference in temperature.
Plugging in the values:
ΔL = (30 m) x (1.2 x 10^-5 per°C) x (15°C)
ΔL = 0.0054 m
Therefore, the steel tape will increase in length by approximately 0.0054 meters (or 5.4 millimeters) when used at a temperature of 35°C, compared to its calibrated length at 20°C.
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A steel tape is calibrated at 20° C. A piece of wood is being measured...
At 10'c it is measured as 30 cm when temperature increases it expands more hence it will be more than 30 when temperature becomes 20'c
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A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer?.
A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer?.
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A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A steel tape is calibrated at 20° C. A piece of wood is being measured by steel tape at 10°C and reading is 30 cm on the tape. The real length of the wood is:a)Equal to 30 cmb)less than 30 cmc)cannot be perdictedd)more than 30 cmCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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