Physics RADAR is used for: 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. receiving a signals in a radio receiver. locating submerged submarines. ANSWER DOWNLOAD EXAMIANS APP
Physics The reflector of a search light is a : Concave mirror Cylindrical mirror Convex mirror Plane mirror Concave mirror Cylindrical mirror Convex mirror Plane mirror ANSWER DOWNLOAD EXAMIANS APP
Physics An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speed of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct? Ve < Vp Cannot be determined Ve = Vp Ve > Vp Ve < Vp Cannot be determined Ve = Vp Ve > Vp ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are more energetic than long waves. Short waves are unaffected by atmospheric disturbances. Short wave broadcasts are made by nearby radio stations. By convention, short waves are meant for long distances, whereas long waves are reserved for short distances. Short waves are more energetic than long waves. Short waves are unaffected by atmospheric disturbances. Short wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
Physics In which region of electromagnetic spectrum does the Lyman series of hydrogen atom lie ? Visible X-ray Ultraviolet Infrared Visible X-ray Ultraviolet Infrared ANSWER DOWNLOAD EXAMIANS APP
Physics When a running car stops suddenly, the passengers tends to lean forward because of: Inertia of motion Centrifugal force Inertia of rest Gravitational force Inertia of motion Centrifugal force Inertia of rest Gravitational force ANSWER DOWNLOAD EXAMIANS APP
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