Which of the following factor is taken care while selecting the container in the process of vacuum evaporation?
A
Withstand high temperature
B
Chemically reactive
C
Conducting
D
Withstand low temperature
Answer:
The correct option is A. Withstand high temperature
Note
A wide variety of source material for evaporation may be used including metals, alloys, semiconductors, insulators, and inorganic salts. These are placed in the container made of for example tungsten, tantalum or molybdenum, which can withstand very high temperature and chemically unreactive towards the material being evaporated.