Physics It is more difficult to walk on a sandy road than on a concrete road because the friction between sand and feet is less than that between concrete and feet. the friction between sand and feet is more than that between concrete and feet. sand is soft and concreter is hard. the sand is grainy but concrete is smooth. the friction between sand and feet is less than that between concrete and feet. the friction between sand and feet is more than that between concrete and feet. sand is soft and concreter is hard. the sand is grainy but concrete is smooth. ANSWER DOWNLOAD EXAMIANS APP
Physics Radioactive elements can be traced out in living cell through a technique called Auto radiography Chromatography Centrifugation All listed here Auto radiography Chromatography Centrifugation All listed here ANSWER DOWNLOAD EXAMIANS APP
Physics The colour of sky appears blue due to Scattering of shorter wave lengths Dispersion Refraction Reflection Scattering of shorter wave lengths Dispersion Refraction Reflection ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 1300 A°–3000 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 3900 A° – 7600 A° 1300 A°–3000 A° 7800 A° – 8000 A° 8500 A° – 9800 A° 3900 A° – 7600 A° ANSWER DOWNLOAD EXAMIANS APP
Physics The spokes used in the wheel of a bicycle increase its Moment of inertia Acceleration Velocity Momentum Moment of inertia Acceleration Velocity Momentum ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Accidents due to contraction in winter can be avoided Steel can be saved Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided ANSWER DOWNLOAD EXAMIANS APP
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