Physics A standing wave occurs when The amplitude of a wave exceeds its wavelength A wave reflects upon itself The speed of the wave is zero or near zero Two waves overlap The amplitude of a wave exceeds its wavelength A wave reflects upon itself The speed of the wave is zero or near zero Two waves overlap ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following principle is used to produce ''low-temperatures' ? Adiabatic demagnetisation Joule-Kelvin effect Super conductivity Thermo-electric effect Adiabatic demagnetisation Joule-Kelvin effect Super conductivity Thermo-electric effect ANSWER DOWNLOAD EXAMIANS APP
Physics Mud houses are cooler in summers and warmer in winters as compared to brick houses because Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters Mud is a good conductor Mud is a poor insulator Mud is a bad conductor Evaporation of water causes cooling in summers and sunlight coming through holes causes warming in winters Mud is a good conductor Mud is a poor insulator Mud is a bad conductor ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not caused by atmospheric refraction of light ? Sun appearing red at sunset Twinkling of stars at night Sun becoming visible two or three minutes before actual sunrise Sun appearing higher in the sky than it actually is Sun appearing red at sunset Twinkling of stars at night Sun becoming visible two or three minutes before actual sunrise Sun appearing higher in the sky than it actually is ANSWER DOWNLOAD EXAMIANS APP
Physics Thermohaline circulation is mainly due to Warm water being added to the ocean due to industial waste Winds causing circulation of ocean water Cold, dense ocean water sinking and warmer water replacing it Warmer, less dense water sinking in the ocean and cold water replacing it Warm water being added to the ocean due to industial waste Winds causing circulation of ocean water Cold, dense ocean water sinking and warmer water replacing it Warmer, less dense water sinking in the ocean and cold water replacing it ANSWER DOWNLOAD EXAMIANS APP
Physics In MRI machine, which one of the following is used? Magnetic wave X-ray Sound wave Ultra-sound wave Magnetic wave X-ray Sound wave Ultra-sound wave ANSWER DOWNLOAD EXAMIANS APP
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