Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere Refraction of light by atmosphere Reflection of light by atmosphere Scattering of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics Which colour of light shows maximum deviation when passed through a prism ? Violet Red Green White Violet Red Green White ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following colour of light deviates least through the prism? Violet Yellow Red Green Violet Yellow Red Green ANSWER DOWNLOAD EXAMIANS APP
Physics When hot liquid is poured into a thick glass tumbler, it cracks because glass : Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has low temperature coefficient of expansion Has high temperature coefficient of expansion Is a bad conductor of heat so only inner surface expands Has a very low specific heat Has low temperature coefficient of expansion ANSWER DOWNLOAD EXAMIANS APP
Physics Remote-sensing device has an inbuilt source of X-ray G-ray Ultraviolet ray Infrared ray X-ray G-ray Ultraviolet ray Infrared ray ANSWER DOWNLOAD EXAMIANS APP
Physics A particle dropped from the top of a tower uniformly falls on ground at a distance which is equal to the height of tower. Which of the following paths will be traversed by the particle ? Great circle Circle Hyper–parabolic Parabolic Great circle Circle Hyper–parabolic Parabolic ANSWER DOWNLOAD EXAMIANS APP
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