Physics Which of the following metals is used for the manufacture of heating elements provided in electric iron ? Nichrome Chromium Tungsten Nickel Nichrome Chromium Tungsten Nickel ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C2>C1 C1>C2 C1pa = C2pg C1 = C2 C2>C1 C1>C2 C1pa = C2pg C1 = C2 ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Water, iron and air Iron, water and air Air, water and iron Iron, air and water Water, iron and air Iron, water and air Air, water and iron Iron, air and water ANSWER DOWNLOAD EXAMIANS APP
Physics The energy of a photon varies directly with its Frequency Speed Wave length None of these Frequency Speed Wave length None of these ANSWER DOWNLOAD EXAMIANS APP
Physics The snow on the mountains does not melt all at once when it is heated by the sun because: It becomes very hard It reflects most of the heat from the sun It has a high latent heat of fusion It has a low specific heat capacity It becomes very hard It reflects most of the heat from the sun It has a high latent heat of fusion It has a low specific heat capacity ANSWER DOWNLOAD EXAMIANS APP
Physics ML2T-2 is the dimensional formula for elasticity pressure couple acting on a body moment of inertia elasticity pressure couple acting on a body moment of inertia ANSWER DOWNLOAD EXAMIANS APP
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