Physics 9 Chapter 8 - Thermal Properties of Matter -30


Physics Class 9
1.    Which of the following formula is correct about ‘β’?




Physics Class 9
2.    What is coefficient of volume thermal expansion of mercury?




Physics Class 9
3.    What is coefficient of volume thermal expansion of water?




Physics Class 9
4.    What is the fractional increase in volume of a substance per Kelvin rise in temperature?




Physics Class 9
5.    Which of the following relation is correct between coefficients of linear thermal expansion and volume thermal expansion?




6. What will be the value of β for the solid for which α has a value of 2 x 10-5 K-1?




Physics Class 9
7. Find the volume of a brass cube at 100oC whose side is 10cm at 0oC. (Coefficient of linear thermal expansion of brass = 1.9 x 10-5 K-1)?




Physics Class 9
8.    Bridges made of steel girders ..................... on day?




Physics Class 9
9.    At which time, bridges made of steel girders expand?




Physics Class 9
10.    Bridges made of steel girders ..................... at night?







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