Units and Measurements Test

Result

Units and Measurements Test - 40

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

If A = b⁴ the fractional error in A is ...............

A

B

C

D
Question 2
4 / -1

A

B

C

D
Question 3
4 / -1

A

B

C

D
Question 4
4 / -1

The length of a rod is (10.15 ± 0.06) cm what is the length of two such rods ?

A
(20.30 ± 0.06) cm

B
(20.30 ± 1.6) cm

C
(10.30 ± 0.12) cm

D
(20.30 ± 0.12) cm

Solution
Question 5
4 / -1

A

B

C

D
Question 6
4 / -1

The resistance of two resistance wires are R₁ (100 ± 5)Ω and R₂ (200 ± 7)Ω are connected in series. find the maximum absolute error in the equivalent resistance of the combination.

A
35Ω

B
12Ω

C
4Ω

D
9Ω
Question 7
4 / -1

A
B

B
C

C
A

D
D
Question 8
4 / -1

The mass of substance is 75.5 gm and its volume is 25 cm². It’s density up to the correct significant figure is ...............

A
3.02 gm/cm³

B
3.200 gm/cm³

C
3.25 gm/cm³

D
3.1 gm/cm³

Solution
Question 9
4 / -1

The area of a rectangle of size 1.25 × 2.245 cm in significant figure is ...............

A
2.80625 cm²

B
2.81 cm²

C
2.806 cm²

D
2.8062 cm²
Question 10
4 / -1

If the length of rod A is (2.35 ± 0.01) cm and that of B is (5.68 ± 0.01) cm then the rod B is longer than rod A by ...............

A
(2.43 ± 0.00) cm

B
(3.33 ± 0.02) cm

C
(2.43 ± 0.01) cm

D
(2.43 ± 0.001) cm