Physics RADAR is used for: receiving a signals in a radio receiver. locating submerged submarines. locating geostationary satellites. detecting and locating the position of objects such as Aeroplanes. receiving a signals in a radio receiver. locating submerged submarines. locating geostationary satellites. detecting and locating the position of objects such as Aeroplanes. ANSWER DOWNLOAD EXAMIANS APP
Physics Radio waves sent out by a radio stations are reflected by Stratosphere Ionosphere Mesosphere Troposphere Stratosphere Ionosphere Mesosphere Troposphere ANSWER DOWNLOAD EXAMIANS APP
Physics When a light wave is reflected from a mirror, there is a change in its Amplitude Velocity Frequency Wavelength Amplitude Velocity Frequency Wavelength ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They use less oxygen They fly inactively Their lungs are very large They have extra air sacs They use less oxygen They fly inactively Their lungs are very large They have extra air sacs ANSWER DOWNLOAD EXAMIANS APP
Physics Convex mirrors are used as a rear view mirror in motor cycles because It forms erect (upright) image It forms smaller image as compared with object It forms real image All of these It forms erect (upright) image It forms smaller image as compared with object It forms real image All of these ANSWER DOWNLOAD EXAMIANS APP
Physics Why does bleeding occur through the nose in high mountainous regions ? The blood pressure fluctuates and finally decreases drastically The pressure of blood in capillaries is greater than the outside pressure The blood pressure of a person increases at high altitudes The pressure at high altitudes is greater than that on the plains The blood pressure fluctuates and finally decreases drastically The pressure of blood in capillaries is greater than the outside pressure The blood pressure of a person increases at high altitudes The pressure at high altitudes is greater than that on the plains ANSWER DOWNLOAD EXAMIANS APP
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