Physics Which type of mirror is used in the head lights of vehicles ? Parabolic mirror Convex mirror Plane mirror Concave mirror Parabolic mirror Convex mirror Plane mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetic keepers are used to protect magnets from : Effect of other magnets Earth's magnetic field Self-demagnetization Demagnetization due to heating Effect of other magnets Earth's magnetic field Self-demagnetization Demagnetization due to heating ANSWER DOWNLOAD EXAMIANS APP
Physics Rate at which velocity changes over time? Speed Displacement Jerk Acceleration Speed Displacement Jerk Acceleration ANSWER DOWNLOAD EXAMIANS APP
Physics If a carrier wave of 1000 kHz is used to carry the signal, the length of transmitting antenna will be equal to ________. 30 m 3 m 300 m 0.3 m 30 m 3 m 300 m 0.3 m ANSWER DOWNLOAD EXAMIANS APP
Physics What type of heat transfer is boiling water? None of these Radiation Convection Conduction None of these Radiation Convection Conduction ANSWER DOWNLOAD EXAMIANS APP
Physics The focal length of a concave mirror with a radius of curvature of 20.0 cm is : 20 cm 5 cm 10 cm 15 cm 20 cm 5 cm 10 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
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