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