Question

पारा का घनत्व 13.6 ग्राम/क्यूबिक से.मी. होने पर 5 लीटर पारे का भार कितना किलोग्राम होगा?
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Answer 1

Given that,

The density of mercury is 13.6 g / cubic cm.

To find,

The weight of 5 liters of mercury?

Solution,

Density is equal to mass per unit volume.

$d=\dfrac{m}{V}$

m is mass of mercury

So,

$m=d\times V\\\\m=13.6\ g/cm^3\times 5\ L$

Since, 1 L = 1000 cm³

$m=13.6\ g/cm^3\times 5000\ cm^3\\\\m=68000\ g\\\\or\\\\m=68\ kg$

So, the mass of mercury is 68 kg

Answer 2

Answer: copper magnet

Explanation: