Physics The magnifying power of an astronomical telescope can be decreased by Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective ANSWER DOWNLOAD EXAMIANS APP
Physics The temperature which has the same reading on both Fahrenheit and Celsius scales is 40° 0° –40° 32° 40° 0° –40° 32° ANSWER DOWNLOAD EXAMIANS APP
Physics When heated from 0 to 100oC volume of a given mass of water will : Increase gradually Decrease gradually Decrease and then will increase Increase and then will decrease Increase gradually Decrease gradually Decrease and then will increase Increase and then will decrease ANSWER DOWNLOAD EXAMIANS APP
Physics The Laser is a beam of radiations which are Coherent and non-monochromatic Non-coherent and monochromatic Coherent and monochromatic Non-coherent and non-monochromatic Coherent and non-monochromatic Non-coherent and monochromatic Coherent and monochromatic Non-coherent and non-monochromatic ANSWER DOWNLOAD EXAMIANS APP
Physics A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf's is : 0.12777777777778 0.21111111111111 0.12638888888889 0.20902777777778 0.12777777777778 0.21111111111111 0.12638888888889 0.20902777777778 ANSWER DOWNLOAD EXAMIANS APP
Physics Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver) The gold piece will weigh more Both silver and gold pieces weigh equal The silver piece will weigh more Weighing will depend on their masses The gold piece will weigh more Both silver and gold pieces weigh equal The silver piece will weigh more Weighing will depend on their masses ANSWER DOWNLOAD EXAMIANS APP
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