Q. With reference to Quasicrystals, consider the following statements;
1.Quasicrystals are not formed in Nature and they are always formed under labarotory conditions.
2.Quasicrystals can be used in surgical instruments, LED lights and non-stick frying pans.
Which of the statements given above is/are correct?
Answer: B
Notes:
Statement 1 is incorrect: Quasicrystal, also called quasi-periodic crystal, is a matter formed atomically in a manner somewhere between the amorphous solids of glasses and the precise pattern of crystals. Recently, Scientists have discovered a third natural source of quasicrystals.
Statement 2 is correct: Quasicrystals can be used in surgical instruments, LED lights and non-stick frying pans. They have poor heat conductivity, which makes them good insulators.
Other potential applications include selective solar absorbers for power conversion, broad-wavelength reflectors, and bone repair and prostheses applications where biocompatibility, low friction and corrosion resistance are required.
Source: Quasicrystal
