can any one tell me that how shoul i prepere for entrance exams of psu i mean from which book i have to gone through?
3 10496Three solid objects of the same material and of equal mass – a sphere, a cylinder (length = diameter) and a cube – are at 5000C initially. These are dropped in a quenching bath containing a large volume of cooling oil each attaining the bath temperature eventually. The time required for 90% change of temperature is smallest for a) cube b) cylinder c) sphere d) equal for all the three whyyyyyyy???????
3 7647For an ideal black body (A) absorptivity = 1 (B) reflectivity = 1 (C) emissivity = 0 which is true???????
4 11082Post New GATE Chemical Engineering Interview Questions
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