PHYSICS ONE LINER SET 49

PHYSICS ONE LINER SET 49

1. Which of the following is used as a moderator in nuclear reactor? Graphite
 
2. Which element that does not occur in nature but can be produced artificially? Plutonium
 
3. Which rocks is transformed into marble? Limestone
 
4. By which number the quality of gasoline’ sample is determined? By its octane number
 
5. What is the principal reason for the formation of metamorphic rocks? Extreme heat and pressure
 
6. Which type of glass is used for making glass reinforced plastic? Quartz glass
 
7. When temperature is gradually decreased, what is the specific heat of
substance?
Decreased
 
8. Which metal is non toxic in nature? Gold
 
9. Which is the element that has the highest first ionization potential? Nitrogen
 
10. Which transition metal is in liquid state? Mercury