PIMSO 2022 - Science - Grade 10 - National Round Question 7

Question 7

1. A spherical silver nanoparticle with diameter 10 nm
2. A gold nanorod with length 500 nm and diameter 10 nm
3. A rectangular microcrystal with dimensions 200 nm × 500 nm × 70 nm
4. A 1 μm × 1 μm graphite flake composed of millions of graphene with total thickness 120 nm
5. A carbon-based wire with length 1 mm and cross-sectional diameter of 50 nm