Physics A wavelength of 0.3 m is produced in air and it travels at a speed of 300 m/s. Then it will be an Ultrasonic wave Audible wave Infrasonic wave Microwave Ultrasonic wave Audible wave Infrasonic wave Microwave ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Stratosphere Mesosphere Ionosphere Exosphere Stratosphere Mesosphere Ionosphere Exosphere ANSWER DOWNLOAD EXAMIANS APP
Physics A decibel is The wavelength of noise A measure of sound level A musical instrument A musical note The wavelength of noise A measure of sound level A musical instrument A musical note ANSWER DOWNLOAD EXAMIANS APP
Physics Which metal is the best conductor of heat? Gold Copper All of these Silver Gold Copper All of these Silver ANSWER DOWNLOAD EXAMIANS APP
Physics When the barometer reading dips suddenly, it is an indication of Hot weather Dry weather Calm weather Storm Hot weather Dry weather Calm weather Storm ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of mirror is used in the head lights of vehicles ? Parabolic mirror Plane mirror Convex mirror Concave mirror Parabolic mirror Plane mirror Convex mirror Concave mirror ANSWER DOWNLOAD EXAMIANS APP
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