1. The increase in volume of 10cm^3 of mercury when the temperature rises by 100°C...

1. The increase in volume of 10cm^3 of mercury when the temperature rises by 100°C is 0.182 cm What is the cubic expansivity of mercury?

2.A brass rod is 2 m long at a certain temperature. What is its length for a temperature rise of 100 K. if the expansivity of brass is 18 x 10^6k^-1?
3. A building can be adequately protected from lightning by...

4.A bridge made of steel is 600m long. What is the daily variation in its length if the night-time and day-time temperature are 10°C and 35°C respectively. The linear expansivity of steel is...

5.The length of a sade of a metal cube at 20°C is 5.0cm. Given that the linear expansivity of the mend 40x10K, find the volume of the cube at 120°C

6. Which of the following instruments can be used to compare the relative magnitudes of charge on two given bodies?

8.When very hot water is poured into two identical thin and thick glass tumblers in equal volume the thick one cracks because...

9.A copper and whose length at 100mis heated to 50°C Find its new length Take & for copper as 0.000017K...

10)When left in freezer, a bottle full of water cracks on freezing into toe because of the....

11)A glass bottle of initial volume 2x 10 cm³ is heated from 20°C 10 50°C if the linear expansivity of glass is 9.0x 10K, the volume of the bottle at 50°C is

12)Dew point is the temperature which water vapour in the atmosphere...

13) The phenomenon whereby be water droplets in the atmosphere combine with dust particles in the Air to reduce visibility is...

14.A thin aluminum plate has a surface area of 1,500m² at 20°C. What will be its surface area when it is cooled to-20°C? (Take the linear expansivity of aluminum to be 2.5 x 10-5K-1)?

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Asked by Hikmah on 7th April, 2024