Class -VIII
Physics
Time-20 min FM - 10 -----------------------------------------------------------------------------------
1. Define cubical expansion and superficial expansion. [5*2=10]
2. What is a bimetallic strip? Give one use.
3. Why gap is present between two railway tracks?
4. Write the function of rollers under the iron bridge?
5. Write the difference beteen evaporation and boiling.
0 Comments:
Post a Comment