Physics Night photography and photopraphy in mist and fog are possible using Ultra-violet radiation Infra-red radiation Gamma radiation Microwave radiation Ultra-violet radiation Infra-red radiation Gamma radiation Microwave radiation ANSWER DOWNLOAD EXAMIANS APP
Physics A copper wire of radius r and length l has a resistance of R. A second copper wire with radius 2r and length l is taken and the two wires are joined in a parallel combination. The resultant resistance of the parallel combination of the two wires will be 5 R/4 4 R/5 5 R R/5 5 R/4 4 R/5 5 R R/5 ANSWER DOWNLOAD EXAMIANS APP
Physics A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4 seconds. 8 36 72 4 8 36 72 4 ANSWER DOWNLOAD EXAMIANS APP
Physics A cup of hot coffee is placed on a metal table in a room. By which of the following methods does it lose heat? Convection and radiation only Conduction and convection only Conduction and radiation only Conduction, convection and radiation Convection and radiation only Conduction and convection only Conduction and radiation only Conduction, convection and radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2 14 m/s 140 m/s 1.4 km/s 0.14 m/s 14 m/s 140 m/s 1.4 km/s 0.14 m/s ANSWER DOWNLOAD EXAMIANS APP
Physics In the electrical circuit of a house, the fuse acts as A safety device A thermopile A step down device A load A safety device A thermopile A step down device A load ANSWER DOWNLOAD EXAMIANS APP
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