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? 3.3 km, 0.30 km 2.2 km, 0.20 km 1.8 km, 0.15 km 2.8 km, 0.25 km 3.3 km, 0.30 km 2.2 km, 0.20 km 1.8 km, 0.15 km 2.8 km, 0.25 km ANSWER DOWNLOAD EXAMIANS APP
Physics An electric iron of 750 W is used for S hours per day. Then the energy consumed in one day by the iron is: 600 units 6 units 0.6 units 60 units 600 units 6 units 0.6 units 60 units ANSWER DOWNLOAD EXAMIANS APP
Physics Ventilators are provided near the ceiling of the room because These provide some sunlight in the room These do not look nice in the lower part The exhaled warmer air rises up and goes out These provide cross ventilation in the room These provide some sunlight in the room These do not look nice in the lower part The exhaled warmer air rises up and goes out These provide cross ventilation in the room ANSWER DOWNLOAD EXAMIANS APP
Physics The best material for the core of a transformer is Hard steel Mild steel Soft iron Stainless steel Hard steel Mild steel Soft iron Stainless steel ANSWER DOWNLOAD EXAMIANS APP
Physics Electrical burns occur principally because of The heat generated by the flow of electrical current through the body The high energy of electrons Radiation pulses of the electricity All of these The heat generated by the flow of electrical current through the body The high energy of electrons Radiation pulses of the electricity All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Why the needle of iron swims on water surface when it is kept gently ? The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight Due to surface tension Due to its shape The density of needle is less than that of water It will remain under the water, when it will displace more water than its weight Due to surface tension Due to its shape ANSWER DOWNLOAD EXAMIANS APP
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