Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 30 db Above 120 db Above 80 db Above 50 db Above 30 db Above 120 db Above 80 db ANSWER DOWNLOAD EXAMIANS APP
Physics During uniform motion of an object along a straight line, its ________ remains constant with time. Acceleration Deceleration Force Velocity Acceleration Deceleration Force Velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Why are we able to hear short wave broadcasts better than long wave broadcasts ? Short waves are unaffected by atmospheric disturbances. 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 wave broadcasts are made by nearby radio stations. Short waves are unaffected by atmospheric disturbances. 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 wave broadcasts are made by nearby radio stations. ANSWER DOWNLOAD EXAMIANS APP
Physics When a piece of pure silicon is doped with aluminium, then The doped silicon piece will become p-type The doped silicon piece will become n-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same The doped silicon piece will become p-type The doped silicon piece will become n-type The resistivity of the doped silicon piece will increase The conductivity of the doped silicon piece will remain the same ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic field lines about a current-carrying wire None of these Both of these Extend radially from the wire Circle the wire in closed loops None of these Both of these Extend radially from the wire Circle the wire in closed loops ANSWER DOWNLOAD EXAMIANS APP
Physics The reflector of a search light is a : Concave mirror Convex mirror Plane mirror Cylindrical mirror Concave mirror Convex mirror Plane mirror Cylindrical mirror ANSWER DOWNLOAD EXAMIANS APP
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