Physics Light travels at the fastest speed in: vacuum hydrogen glass water vacuum hydrogen glass water ANSWER DOWNLOAD EXAMIANS APP
Physics Stationary wave is formed by A transverse wave superposing a longitudinal wave Two waves of same frequency travelling in the same direction Two waves of same frequency travelling in the opposite direction Two waves of the same speed superposing A transverse wave superposing a longitudinal wave Two waves of same frequency travelling in the same direction Two waves of same frequency travelling in the opposite direction Two waves of the same speed superposing ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 8500 A° – 9800 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 1300 A°–3000 A° 8500 A° – 9800 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 1300 A°–3000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics Green house effect is the heating up of the Earth's atmosphere which is due to G-rays X-rays The ultraviolet rays The infra-red rays G-rays X-rays The ultraviolet rays The infra-red rays ANSWER DOWNLOAD EXAMIANS APP
Physics The capacity of a water heater is measured in Metres Litres Gallons Both A & B Metres Litres Gallons Both A & B ANSWER DOWNLOAD EXAMIANS APP
Physics Certain substances loose their electrical resistance completely at super low temperature. Such substances are called. Semi conductors Superconductors Dielectrics Perfect conductors Semi conductors Superconductors Dielectrics Perfect conductors ANSWER DOWNLOAD EXAMIANS APP
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