Physics Red light is used for signals because it has High intensity High frequency Long wavelength Low refraction in the medium High intensity High frequency Long wavelength Low refraction in the medium ANSWER DOWNLOAD EXAMIANS APP
Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 8 T 4 T 1 T 2 T 8 T 4 T 1 T 2 T ANSWER DOWNLOAD EXAMIANS APP
Physics Remote-sensing device has an inbuilt source of Ultraviolet ray G-ray Infrared ray X-ray Ultraviolet ray G-ray Infrared ray X-ray ANSWER DOWNLOAD EXAMIANS APP
Physics Depth of ocean is measured by Animometer Siesmometer Fathometer Aerometer Animometer Siesmometer Fathometer Aerometer ANSWER DOWNLOAD EXAMIANS APP
Physics Which type of radiation has the lowest penetrating ability? Beta Gamma All of these Alpha Beta Gamma All of these Alpha ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Refraction of light by atmosphere Diffraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Diffraction of light by atmosphere Scattering of light by atmosphere Reflection of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
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