Physics Which of the following is the unit of perceived loudness of sound ? Hertz Phon Decibel Sone Hertz Phon Decibel Sone ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Water, iron and air Air, water and iron Iron, water and air Iron, air and water Water, iron and air Air, water and iron Iron, water and air Iron, air and water ANSWER DOWNLOAD EXAMIANS APP
Physics What type of simple machine is an axe? The screw Both A & B Wedge Lever The screw Both A & B Wedge Lever ANSWER DOWNLOAD EXAMIANS APP
Physics Which of these waves can be polarized ? Transverse waves on a string Longitudinal waves on a string Light waves Sound waves in air Transverse waves on a string Longitudinal waves on a string Light waves Sound waves in air ANSWER DOWNLOAD EXAMIANS APP
Physics Rainbows are produced when sunlight : Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. None of the given statements is correct. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction Incident on raindrops hanging in the atmosphere is dispresed after suffering reflection. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction and internal reflection. None of the given statements is correct. Incident on rain drops hanging in the atmosphere is dispersed after suffering refraction ANSWER DOWNLOAD EXAMIANS APP
Physics For photoelectric effect to take place, the metal used as the cathode should have ________ Low resistance Low work function Low melting point High melting point Low resistance Low work function Low melting point High melting point ANSWER DOWNLOAD EXAMIANS APP
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