Questions
A rectangular metal plate has two circular holes drilled in it in a symmetric manner as shown in the figure. If the metal plate is uniformly heated, which of the shown distances “A”, “B” or “C” increases?
detailed solution
Correct option is B
A hole or hollow in a solid expands on heating as if it is filled with the same metal. Fill up the holes and treat them as two circles drawn and think what happens when the plate is heatedTalk to our academic expert!
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A rotating solid metal sphere is heated by . If then percentage change in its moment of inertia is
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