SAT Physics Preparation MCQ 70 PDF Download

MCQ: The mass of the jar containing air is 320 g, mass of evacuated jar is 305 g, mass of jar with water is 1090 g and density of water is 1 g cm^-3. What is the density of the air?

1. 15 g
2. 785 g
3. 325 g
4. 1.27 × 10^-3 g cm^-3