Physics Sound waves do not show the phenomenon of Diffraction Refraction Polarisation Interference Diffraction Refraction Polarisation Interference ANSWER DOWNLOAD EXAMIANS APP
Physics Every hot object emits ________ Infrared rays Visible light Ultraviolet rays X–rays Infrared rays Visible light Ultraviolet rays X–rays ANSWER DOWNLOAD EXAMIANS APP
Physics Choose the most appropriate answer: Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation? Scattering Diffraction Interference Polarization Scattering Diffraction Interference Polarization ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to low air pressure Due to low temperature Due to ozone Due to high humidity Due to low air pressure Due to low temperature Due to ozone Due to high humidity ANSWER DOWNLOAD EXAMIANS APP
Physics Which alternative energy source is exhaustible? Wind energy Geothermal energy Tidal energy Solar energy Wind energy Geothermal energy Tidal energy Solar energy ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of measurement of noise is Acoustics Hertz Decibel Amplifier Acoustics Hertz Decibel Amplifier ANSWER DOWNLOAD EXAMIANS APP