Physics Ozone layer above the surface of Earth provides a shield against Ultra-violet rays X-rays Gamma rays Infra-red rays Ultra-violet rays X-rays Gamma rays Infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Carbon dioxide Chlorine Ozone Ammonia Carbon dioxide Chlorine Ozone Ammonia ANSWER DOWNLOAD EXAMIANS APP
Physics Who among the following gave the Uncertainty principle? R.A Milkman S.N Bose Werner Heisenberg Ernset Rutherford R.A Milkman S.N Bose Werner Heisenberg Ernset Rutherford ANSWER DOWNLOAD EXAMIANS APP
Physics Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons? 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km 1.8 km, 0.15 km 2.2 km, 0.20 km 3.3 km, 0.30 km 2.8 km, 0.25 km 1.8 km, 0.15 km ANSWER DOWNLOAD EXAMIANS APP
Physics When the Sun is near the horizon during the morning or evening, it appears reddish. The phenomenon that is responsible for this observation is Dispersion of light Scattering of light Reflection of light Refraction of light Dispersion of light Scattering of light Reflection of light Refraction of light ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Control the speed of train Keep the rails equidistant Avoid the tracks being distorted due to seasonal temperature variation Avoid the heating of tracks to high temperature Control the speed of train ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS