Physics Heavy water is used in nuclear reactor to Slow down neutron Absorb neutron Increase temperature Increase speed of neutron Slow down neutron Absorb neutron Increase temperature Increase speed of neutron ANSWER DOWNLOAD EXAMIANS APP
Physics Burns caused by steam are much severe than those caused by boiling water because Temperature of steam is higher Steam pierces through the pores of body quickly Steam has latent heat Steam is gas and engulfs the body quickly Temperature of steam is higher Steam pierces through the pores of body quickly Steam has latent heat Steam is gas and engulfs the body quickly ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by Increasing the focal length of the objective Increasing the focal length of the eyepiece Decreasing the focal length of the eyepiece None of these Increasing the focal length of the objective Increasing the focal length of the eyepiece Decreasing the focal length of the eyepiece None of these ANSWER DOWNLOAD EXAMIANS APP
Physics During hot weather, the fan produces a feeling of comfort. This is because Conductivity of air increases Fan supplies cool air Fan cools the air Our perspiration eva-porates rapidly Conductivity of air increases Fan supplies cool air Fan cools the air Our perspiration eva-porates rapidly ANSWER DOWNLOAD EXAMIANS APP
Physics Stars appears to move from east to west because The background of the stars moves from west to east The earth rotates from east to west The earth rotates from west to east All stars move from east to west The background of the stars moves from west to east The earth rotates from east to west The earth rotates from west to east All stars move from east to west ANSWER DOWNLOAD EXAMIANS APP
Physics A small gap is left at the joints of rails in a railway track to Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant Control the speed of train Avoid the heating of tracks to high temperature Avoid the tracks being distorted due to seasonal temperature variation Keep the rails equidistant Control the speed of train Avoid the heating of tracks to high temperature ANSWER DOWNLOAD EXAMIANS APP
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