Physics A periscope works by the principle of Total internal reflection Refraction Reflection Diffraction Total internal reflection Refraction Reflection Diffraction ANSWER DOWNLOAD EXAMIANS APP
Physics The wavelength at which the peak of intensity of blackbody radiation occurs Increases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes Decreases with increase in temperature Increases with increase in temperature Is the same at all temperatures Does not follow any pattern as temperature changes Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Physics In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch? To allow the heat to get into the food through the hole To allow the microwaves to get into the food through the holes To prevent the steam pressure from bursting open the pouch To allow the aroma of the food to come out through the holes To allow the heat to get into the food through the hole To allow the microwaves to get into the food through the holes To prevent the steam pressure from bursting open the pouch To allow the aroma of the food to come out through the holes ANSWER DOWNLOAD EXAMIANS APP
Physics The base of an electric iron is brightly polished mainly To reduce heat loss by radiation To make it smooth and frictionless To make it more durable To make it rust-proof To reduce heat loss by radiation To make it smooth and frictionless To make it more durable To make it rust-proof ANSWER DOWNLOAD EXAMIANS APP
Physics If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is ________ 60 C 360C 216 C 36 C 60 C 360C 216 C 36 C ANSWER DOWNLOAD EXAMIANS APP
Physics The damage of the human body due to radiation (X-rays or grays etc,) is measured in : Rads Roentgen Rems Curie Rads Roentgen Rems Curie ANSWER DOWNLOAD EXAMIANS APP
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