Physics The mercury and sodium street lamps light up because of : Electron absorption Electron emission Atomic absorption Atomic emission Electron absorption Electron emission Atomic absorption Atomic emission 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 R/5 5 R 4 R/5 5 R/4 R/5 5 R 4 R/5 5 R/4 ANSWER DOWNLOAD EXAMIANS APP
Physics The sparkling of a diamond is due to Polarisation of light Interference of light Refraction of light Total internal reflection of light Polarisation of light Interference of light Refraction of light Total internal reflection of light ANSWER DOWNLOAD EXAMIANS APP
Physics If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths? LUV > lIR > lVIS LUV < lVIS < lIR LUV > lVIS > lIR LUV < lIR < lVIS LUV > lIR > lVIS LUV < lVIS < lIR LUV > lVIS > lIR LUV < lIR < lVIS ANSWER DOWNLOAD EXAMIANS APP
Physics How much calorie of energy is released by a boiled egg ? 60 50 77 40 60 50 77 40 ANSWER DOWNLOAD EXAMIANS APP
Physics Oil rises up the wick in a lamp because Of the surface tension phenomenon Oil is very light Of the diffusion of oil through the wick Of the capillary action phenomenon Of the surface tension phenomenon Oil is very light Of the diffusion of oil through the wick Of the capillary action phenomenon ANSWER DOWNLOAD EXAMIANS APP
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