Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Reflect back the heat given by earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Absorb heat from the atmosphere send it towards earth Reflect back the heat given by earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics Magnetism in materials is due to All neutrons at rest Protons at rest Circular motion of electrons Electrons at rest All neutrons at rest Protons at rest Circular motion of electrons Electrons at rest ANSWER DOWNLOAD EXAMIANS APP
Physics If ice floating on water in a vessel melts, the water level in the vessel ________ . First increases before decreasing Increases Decreases Does not change First increases before decreasing Increases Decreases Does not change ANSWER DOWNLOAD EXAMIANS APP
Physics Planets are non-luminous heavenly bodies luminous heavenly bodies revolving around a star luminous heavenly bodies that twinkle luminous heavenly bodies that do not twinkle non-luminous heavenly bodies luminous heavenly bodies revolving around a star luminous heavenly bodies that twinkle luminous heavenly bodies that do not twinkle ANSWER DOWNLOAD EXAMIANS APP
Physics A tennis ball machine serves a ball vertically into the air from a height of 2 feet, with an initial speed of 110 feet per second. After how many seconds does the ball attain its maximum height? 5.41 sec 4.65 sec 3.44 sec 2.87 sec 5.41 sec 4.65 sec 3.44 sec 2.87 sec ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a part of a CRT ? Electron gun Gas plasma Phosphor screen Shadow mask Electron gun Gas plasma Phosphor screen Shadow mask ANSWER DOWNLOAD EXAMIANS APP
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