Physics Permissible noise level at Residential area during night time is : 75 dB (A) 45 dB (A) 80 dB (A) 55 dB (A) 75 dB (A) 45 dB (A) 80 dB (A) 55 dB (A) 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 C1pa = C2pg C1 = C2 C1>C2 C2>C1 C1pa = C2pg C1 = C2 C1>C2 ANSWER DOWNLOAD EXAMIANS APP
Physics It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because Resultant weight of buckets is zero Centre of gravity and centre of equilibrium fall within the feet Weights of buckets are balanced Centre of gravity falls within the body Resultant weight of buckets is zero Centre of gravity and centre of equilibrium fall within the feet Weights of buckets are balanced Centre of gravity falls within the body 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 has a high latent heat of fusion It has a low specific heat capacity It reflects most of the heat from the sun It becomes very hard It has a high latent heat of fusion It has a low specific heat capacity It reflects most of the heat from the sun It becomes very hard ANSWER DOWNLOAD EXAMIANS APP
Physics If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? Unchanged Decreases Increases Depends upon the metal Unchanged Decreases Increases Depends upon the metal ANSWER DOWNLOAD EXAMIANS APP
Physics When a ball is thrown vertically upwards, which of the following quantities remains constant during its motion? Velocity Energy Displacement Acceleration Velocity Energy Displacement Acceleration ANSWER DOWNLOAD EXAMIANS APP
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