মেকানিক্যাল ইঞ্জিনিয়ারিং
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পদার্থ বিজ্ঞান
8 chapters
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রসায়ন
15 chapters
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গণিত
4 chapters
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ইংরেজি
11 chapters
Technical
ME/IPE/MME
12 chapters
Questions
0 read · 0 practiced · 0 answered in examsMomentum-এর dimensional formula কোনটি?
Correct answer: a
Momentum = mass × velocity = [M][LT⁻¹] = [MLT⁻¹]।
Impulse-এর dimension কী?
Correct answer: a
Impulse = force × time = [MLT⁻²][T] = [MLT⁻¹]।
Work-এর dimensional formula কোনটি?
Correct answer: b
Work = force × displacement = [MLT⁻²][L] = [ML²T⁻²]।
Energy-এর dimension কোনটি?
Correct answer: a
Energy-এর dimension work-এর মতো, অর্থাৎ [ML²T⁻²]।
Power-এর dimensional formula কী?
Correct answer: c
Power = work/time = [ML²T⁻²]/[T] = [ML²T⁻³]।
Pressure-এর dimension কোনটি?
Correct answer: b
Pressure = force/area = [MLT⁻²]/[L²] = [ML⁻¹T⁻²]।
Density-এর dimensional formula কী?
Correct answer: a
Density = mass/volume = [M]/[L³] = [ML⁻³]।
Frequency-এর dimension কী?
Correct answer: b
Frequency = 1/time, তাই dimension [T⁻¹]।
Angular velocity-এর dimension কোনটি?
Correct answer: a
Radian dimensionless; angular velocity = angle/time, তাই [T⁻¹]।
Angular acceleration-এর dimension কী?
Correct answer: b
Angular acceleration = angular velocity/time = [T⁻¹]/[T] = [T⁻²]।