Physics In MRI machine, which one of the following is used? X-ray Sound wave Ultra-sound wave Magnetic wave X-ray Sound wave Ultra-sound wave Magnetic wave ANSWER DOWNLOAD EXAMIANS APP
Physics Sound becomes hazardous noise pollution at decibels? Above 50 db Above 80 db Above 120 db Above 30 db Above 50 db Above 80 db Above 120 db Above 30 db ANSWER DOWNLOAD EXAMIANS APP
Physics Purpose of an optical filter is to Refract light of different colours Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours Refract light of different colours Reflect lights of different colours Transmit or absorb light of different colours Dispense light into component colours ANSWER DOWNLOAD EXAMIANS APP
Physics In a photocell light energy is converted into Potential energy Chemical energy Heat energy Electrical energy Potential energy Chemical energy Heat energy Electrical energy ANSWER DOWNLOAD EXAMIANS APP
Physics Super cooling stands for cooling of a liquid : At melting point Below freezing point At freezing point Above melting point At melting point Below freezing point At freezing point Above melting point ANSWER DOWNLOAD EXAMIANS APP
Physics An ice block with a piece of lead embeded in it floats in water. If ice melts the water level Falls first and then rises Remains same Rises Falls Falls first and then rises Remains same Rises Falls ANSWER DOWNLOAD EXAMIANS APP
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