Physics A vacuum cleaner works on the principle of pressure difference. On the moon it will Work as efficiently as on the earth Work with increased efficiency Work with reduced efficiency Not work at all Work as efficiently as on the earth Work with increased efficiency Work with reduced efficiency Not work at all ANSWER DOWNLOAD EXAMIANS APP
Physics Magnifying Glass is basically a Convex lens Concave lens Cylindrical lens Plano-concave lens Convex lens Concave lens Cylindrical lens Plano-concave lens ANSWER DOWNLOAD EXAMIANS APP
Physics Ultra violet radiations of the Sun do not reach the earth because, earth's atmosphere is surrounded by Chlorine Ozone Ammonia Carbon dioxide Chlorine Ozone Ammonia Carbon dioxide 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? 4.65 sec 5.41 sec 3.44 sec 2.87 sec 4.65 sec 5.41 sec 3.44 sec 2.87 sec ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics What is the direction of torque? Same as the direction of applied force Parallel to the radius Opposite to the direction of applied force Perpendicular to the direction of applied force Same as the direction of applied force Parallel to the radius Opposite to the direction of applied force Perpendicular to the direction of applied force ANSWER DOWNLOAD EXAMIANS APP
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