Q21- How is shadow formed?
Q22- How is salt obtained from the sea water?
Q23- Why should an electrician use rubber gloves while repairing an
electric switch?
Q24- What is underground water?
Q25- How do you define magnetism?
Q26- Why are shadows black in colour?
Q27- How are magnetic materials different from non magnetic materials?
Q28- How is electricity produced in an electric cell?
Answers
Answered by
1
Answer:
shadow are formed when an opaque object or material is placed in the path of rays of the light
Similar questions