111.  The mass of substance is and its volume is . It’s density up to the correct significant figure is

A.

B.

C.

D.

Answer : Option A

Explanation :

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112.  The area of a rectangle of size in significant figure is

A.

B.

C.

D.

Answer : Option B

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113.  The significant figures in 500.5000 are

A. 5

B. 3

C. 7

D. 6

Answer : Option C

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114.  Addition of measurement 15.225 cm, 7.21 cm and 3.0 cm in significant figure is

A. 25.43 cm

B. 25.4 cm

C. 25.435 cm

D. 25.4350 cm

Answer : Option B

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115.  Subtract 0.2 J from 7.36 J and express the result with correct number of significant figures.

A. 7.160 J

B. 7.016 J

C. 7.16 J

D. 7.2 J

Answer : Option D

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116.  After rounding of the number 9595 to 3 significant digits the value becomes

A. 9600

B. 9000

C. 9590

D. 9500

Answer : Option C

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117.  How many significant numbers are there in ?

A. 3

B. 4

C. 2

D. 5

Answer : Option A

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118.  The radius of circle is 1.26 cm. According to the concept of significant figures area of it can be represented as

A.

B.

C.

D.

Answer : Option C

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119.  If A = 3.331 cm B = 3.3 cm then with regard to significant figure A + B =

A. 6.6 cm

B. 6.31 cm

C. 6.631 cm

D. 6 cm

Answer : Option A

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120.  If the length of rod A is and that of B is then the rod B is longer than rod A by

A.

B.

C.

D.

Answer : Option B

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