SSC-1 Hub
Computer Science
Physics
Chemistry
Islamic Studies
Pak Studies
Login
Open main menu
Brief Questions and Answers (3 marks each)
Two liquids A and B, have densities 1 g/mL and 1.2 g/mL respectively. When both liquids are poured into a container, one liquid floats on top of the other. Which liquid is on top, and why?
Write a method to find the volume and density of a human body.
How is plasma the fourth state of matter? Give a reason.
Why is water not used in liquid-in-glass thermometers?
Can we increase the internal energy of a substance without increasing its temperature?
Why are fixed point scales required for thermometers? What difficulties are there when setting fixed points for thermometer scales?
Mercury is replaced with alcohol in liquid-in-glass thermometers. Discuss the possible change in sensitivity and range of the thermometer.
Why -273.15°C temperature is called absolute zero? Can we achieve this temperature?
Why is a thermocouple thermometer suitable for measuring high temperatures but not a liquid-in-glass thermometer?
Can we increase the sensitivity of a liquid-in-glass thermometer without changing its range?
One student claims to have constructed a more sensitive liquid-in-glass thermometer. How can her claim be verified?