PHYSICS ONE LINER SET 09

PHYSICS ONE LINER SET 09

1. What does Every object at a temperature above absolute zero? Radiates energy
 
2. The value of which quantity remains same in all system of units? Specific gravity
 
3. A floating body always displaces liquid equal to its which thing? Weight
 
4. When viewed in white light, why do soap bubbles show colours? Because of
interference
 
5. ‘Parsec’ is the unit of measurement of which distance? Astronomical distance
 
6. The light coming from stars gives the idea of their which quality? Temperature
 
7. What is a strong argument for the particle nature of cathode rays? They are cast shadow
 
8. Which industry produces the most non-biodegradable wastes? Thermal power plants
 
9. What is the number of electrons in an atom of atomic number Z and mass number A?
Z
 
10. Which was the lowest unit of Chola administration? Valanadu