Physics Which of the following parts of the sunlight makes the solar cooker hot ? Ultra violet Red light Cosmic rays Infra red Ultra violet Red light Cosmic rays Infra red ANSWER DOWNLOAD EXAMIANS APP
Physics In the atmosphere ultraviolet rays are absorbed by Oxygen Helium Ozone Nitrogen Oxygen Helium Ozone Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Physics Energy of Ultraviolet rays is great than X-rays Cosmic rays Gamma rays Infrared rays X-rays Cosmic rays Gamma rays Infrared rays ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 1300 A°–3000 A° 3900 A° – 7600 A° ANSWER DOWNLOAD EXAMIANS APP
Physics Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? Stratosphere Exosphere Ionosphere Mesosphere Stratosphere Exosphere Ionosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
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