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Grade: upto college level
        
A large flat slab of metal at temperature T­­­­0  has a hole in it. The metal  is warned to a new temperature T> T­­0. Upon warming, the area of the hole will
(A) increase.
(B)decrease.
(C) remain the same size.
(D) possibly change size, depending on the shape of the hole.
4 years ago

Answers : (3)

sankalp nainwal
36 Points
							
b
4 years ago
rehman ali
15 Points
							
(a)  different metal expand due to higher temperature because due to movement of particles they have need more space , then hole increase 
2 months ago
Vikas TU
11138 Points
							
Metals expand when you heat them, so the circle should expand. There's no real difference between the circle and a hole (of the same size) cut out of it. The circle is, in effect, the circumference of the hole you put into it. So the hole will get larger.
2 months ago
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Course Features

  • 101 Video Lectures
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  • Previous Year Papers
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  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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