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2021-01-31 09:01:46
00:17:46
Urdu
conceptual questions related to Physics of solids conceptual question part 3 chapter 16 exercise conceptual questions of chapter 16 solved short questions of 2nd year physics physics lectures candle academy Pakistan Federal board Physics kpk board Physics
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welcome to candle academy Pakistan. this is lecture 15 of chapter 16 Physics of solids for class 12 Federal board and kpk board. in this lecture exercise conceptual questions part 3 is solved.
following are the statements of the questions solved in this lecture.
00:46 Conceptual question 16.7
Explain hooke's law and modulus of elasticity.
04:33 Conceptual question 16.8
Is there any difference in the length of a 20 metre steel girder when standing vertically and horizontally.
07:50 Conceptual question 16.9
Steel reinforcing is used in concrete beams to prevent cracking.explain where the steel reinforcing should be placed in a concrete beam?
11:18 Conceptual question 16.10
What is meat bi elastic limit of material?
In what way does a material behave if it obeys hook law?
14:26 Conceptual questions 16.11
Cast iron beams are used in bridge in building construction. The lower part of the beam is thicker than the upper part. Why is it better for a lower part of the beam to be thicker than the upper part? Give reasons for your answers including reference to the tensile and compressive strength.
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