Question

Figure 10.1 shows a measuring scale which is usually supplied with a geometry box. Which of the following distance cannot be measured with this scale by using it only once? * 2 points Captionless Image a) 0.1m b) 0.15 m c) 0.2 m d) 0.05 m​

Answer 1

Option c which is 0.2 m you cannot measure as it is a cm scale and 0.2 m is quite a large value which exceeds the limitations of the scale

Answer 2

Solution :-

As we can see that, the given measuring scale shows,

• Cm in one side => 0 cm to 15 cm .
• Inches on another side => 0 inch to 6 inch (approx) .

we know that,

• 1m = 100 cm .

So, Checking given options we get,

a) 0.1 m

→ 0.1 * 100

→ 10.0 cm

→ 10 cm

we can measure 10 cm in first time only .

b) 0.15 m

→ 0.15 * 100

→ 15.00 cm

→ 15 cm

we can measure 15 cm in first time only .

c) 0.2 m

→ 0.2 * 100

→ 20.0 cm

→ 20 cm

Since 20 cm is greater than 15 cm , we can't measure 20 cm in first time . First we have to measure upto 15 cm and then we have to measure next length as 5 cm . (15 cm + 5cm = 20 cm.)

d) 0.05 m

→ 0.05 * 100

→ 5.00 cm

→ 5 cm

we can measure 5 cm in first time only .

Hence, Option (C) 0.2 m is correct answer .

Learn more :-

(3) निम्न के स्थानीय मान लिखिये-

(अ)43.24

(स)884.20

(ब) 534.34

(द) 178.34

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