Physics Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? K1+k2/k1k2 K1k2/k1+k2 None 2k1k2/k1+k2 K1+k2/k1k2 K1k2/k1+k2 None 2k1k2/k1+k2 ANSWER DOWNLOAD EXAMIANS APP
Physics A piece of wood is held under water. The upthrust on it will be: Less than weight of the wood Equal to the weight of the wood Zero More than weight of the wood Less than weight of the wood Equal to the weight of the wood Zero More than weight of the wood ANSWER DOWNLOAD EXAMIANS APP
Physics The earth is a Good absorber and good radiator of heat Good reflector of heat Non-absorber of heat Bad absorber and bad radiator of heat Good absorber and good radiator of heat Good reflector of heat Non-absorber of heat Bad absorber and bad radiator of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The ''four stroke petrol engine' is based on Otto-cycle Boyle's-cycle Carnot-cycle Diesel-cycle Otto-cycle Boyle's-cycle Carnot-cycle Diesel-cycle ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the longest wavelength? Ultraviolet radiation Infrared radiation Visible radiation X-ray radiation Ultraviolet radiation Infrared radiation Visible radiation X-ray radiation ANSWER DOWNLOAD EXAMIANS APP
Physics In order to make an electromagnet you need a All of these Dry cell batteries Iron nail Thin coated copper wire All of these Dry cell batteries Iron nail Thin coated copper wire ANSWER DOWNLOAD EXAMIANS APP
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