Physics Red light has a wavelength of 70 A°. In "nm" it is 7 nm 0.07 nm 70 nm 700 nm 7 nm 0.07 nm 70 nm 700 nm ANSWER DOWNLOAD EXAMIANS APP
Physics Positive feedback is used in Oscillators Amplifiers Rectifiers None of these Oscillators Amplifiers Rectifiers None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly 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 Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Reflect back the heat given by earth ANSWER DOWNLOAD EXAMIANS APP
Physics Loudness of sound depends on Amplitude Wavelength Frequency Pitch Amplitude Wavelength Frequency Pitch ANSWER DOWNLOAD EXAMIANS APP
Physics A thin oil film on a water surface appears coloured because of Diffraction Interference Polarization Reflection Diffraction Interference Polarization Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics What is the full form of "RADAR" ? Region Device and Ranging Radio Device and Ranging Radio Detecting and Ranging Radio Detect and Rangs Region Device and Ranging Radio Device and Ranging Radio Detecting and Ranging Radio Detect and Rangs ANSWER DOWNLOAD EXAMIANS APP
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