Physics The ordinary and maximum tolerance limit of sound by human being is 65 db to 75 db (decibel) 70 db to 85 db (decibel) 60 db to 80 db (decibel) 50 db to 70 db (decibel) 65 db to 75 db (decibel) 70 db to 85 db (decibel) 60 db to 80 db (decibel) 50 db to 70 db (decibel) 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 4 R/5 5 R R/5 5 R/4 4 R/5 5 R ANSWER DOWNLOAD EXAMIANS APP
Physics Beta rays emitted by a radioactive material are Neutral particles Electromagnetic radiations Charged particles emitted by nucleus The electrons orbiting around the nucleus Neutral particles Electromagnetic radiations Charged particles emitted by nucleus The electrons orbiting around the nucleus ANSWER DOWNLOAD EXAMIANS APP
Physics In the process of magnetisation of a bar Only the ends of the bar get magnetised Only some parts of the outer layers of the bar get magnetised Only the surface of the bar gets magnetised The entire bulk of the bar gets magnetised Only the ends of the bar get magnetised Only some parts of the outer layers of the bar get magnetised Only the surface of the bar gets magnetised The entire bulk of the bar gets magnetised ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? I.Diffusion II.Refraction III.Internal reflection I and II I, II and III I and III II and III I and II I, II and III I and III II and III ANSWER DOWNLOAD EXAMIANS APP
Physics Parsec is the unit of Time Distance Magnetic line Intensity of light Time Distance Magnetic line Intensity of light ANSWER DOWNLOAD EXAMIANS APP
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