Physics A standing wave occurs when A wave reflects upon itself Two waves overlap The speed of the wave is zero or near zero The amplitude of a wave exceeds its wavelength A wave reflects upon itself Two waves overlap The speed of the wave is zero or near zero The amplitude of a wave exceeds its wavelength ANSWER DOWNLOAD EXAMIANS APP
Physics The velocity of the sound is highest in Vacuum Metal Water Air Vacuum Metal Water Air ANSWER DOWNLOAD EXAMIANS APP
Physics What happens to a liquid, when the vapour pressure equals the atmospheric pressure? The liquid cools The liquid evaporates The liquid boils No change The liquid cools The liquid evaporates The liquid boils No change ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Radio Infrared Ultrasonic Ultra violet Radio Infrared Ultrasonic Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of radiation has the lowest penetrating ability? All of these Alpha Gamma Beta All of these Alpha Gamma Beta ANSWER DOWNLOAD EXAMIANS APP
Physics Which among the following waves is used for communication by artificial satellites ? M. Radio waves Frequency of 1016 series Micro waves M. Radio waves Frequency of 1016 series Micro waves ANSWER DOWNLOAD EXAMIANS APP
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