A-LevelPhysicsForces, density and pressure9702/12 · May/June 2019 · Q211 Mark
The diagram shows the arrangement of atoms in a particular crystal. [Figure 21.1] Each atom is at the corner of a cube. The mass of each atom is 3.5 × 10⁻²⁵ kg. The density of the crystal is 9.2 × 10³ kg m⁻³. What is the shortest distance between the centres of two adjacent atoms?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A3.8 × 10⁻²⁹ m
B6.2 × 10⁻¹⁵ m
C3.4 × 10⁻¹⁰ m
D3.0 × 10⁻⁹ m
✓ Correct answer
C: 3.4 × 10⁻¹⁰ m
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