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Units and Measurements

269026 The mathematical operation in which the accuracy is limited to least accurate term is

1 addition

2 subtraction

3 multiplication\& division

4 both 1 and 2

Units and Measurements

269027 The time period of a seconds pendulum is measured repeatedly forthreetimes by two stop watches $A, B$ . If the readings are asfollows, then
$Unknown environment 'tabular'$

1

A

ismoreaccurate but

B

ismore precise

2

B

ismoreaccuratebut

A

is more precise

3

A, B

are equally precise

4 A,B areequally accurate

Units and Measurements

269028 If $Y = a + b$ , the maximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a + b} + \frac{Δ b}{a + b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269029 If $Y = a - b$ ,themaximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a - b} + \frac{Δ b}{a - b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269026 The mathematical operation in which the accuracy is limited to least accurate term is

1 addition

2 subtraction

3 multiplication\& division

4 both 1 and 2

Units and Measurements

269027 The time period of a seconds pendulum is measured repeatedly forthreetimes by two stop watches $A, B$ . If the readings are asfollows, then
$Unknown environment 'tabular'$

1

A

ismoreaccurate but

B

ismore precise

2

B

ismoreaccuratebut

A

is more precise

3

A, B

are equally precise

4 A,B areequally accurate

Units and Measurements

269028 If $Y = a + b$ , the maximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a + b} + \frac{Δ b}{a + b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269029 If $Y = a - b$ ,themaximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a - b} + \frac{Δ b}{a - b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269026 The mathematical operation in which the accuracy is limited to least accurate term is

1 addition

2 subtraction

3 multiplication\& division

4 both 1 and 2

Units and Measurements

269027 The time period of a seconds pendulum is measured repeatedly forthreetimes by two stop watches $A, B$ . If the readings are asfollows, then
$Unknown environment 'tabular'$

1

A

ismoreaccurate but

B

ismore precise

2

B

ismoreaccuratebut

A

is more precise

3

A, B

are equally precise

4 A,B areequally accurate

Units and Measurements

269028 If $Y = a + b$ , the maximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a + b} + \frac{Δ b}{a + b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269029 If $Y = a - b$ ,themaximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a - b} + \frac{Δ b}{a - b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269026 The mathematical operation in which the accuracy is limited to least accurate term is

1 addition

2 subtraction

3 multiplication\& division

4 both 1 and 2

Units and Measurements

269027 The time period of a seconds pendulum is measured repeatedly forthreetimes by two stop watches $A, B$ . If the readings are asfollows, then
$Unknown environment 'tabular'$

1

A

ismoreaccurate but

B

ismore precise

2

B

ismoreaccuratebut

A

is more precise

3

A, B

are equally precise

4 A,B areequally accurate

Units and Measurements

269028 If $Y = a + b$ , the maximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a + b} + \frac{Δ b}{a + b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

Units and Measurements

269029 If $Y = a - b$ ,themaximum percentage error in the measurement of $Y$ will be

1

(\frac{Δ a}{a} + \frac{Δ b}{b}) \times 100

2

(\frac{Δ a}{a - b} + \frac{Δ b}{a - b}) \times 100

3

(\frac{Δ a}{a} - \frac{Δ b}{b}) \times 100

4

(\frac{Δ a}{a - b} - \frac{Δ b}{a - b}) \times 100

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