Physics Why does ice covered in sawdust not melt quickly ? The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat The water is absorbed by sawdust Sawdust is good conductor of heat Sawdust does not allow the air to touch the ice Sawdust is a bad conductor of heat ANSWER DOWNLOAD EXAMIANS APP
Physics The ringing of an electric bell in an enclosed evacuated glass bell jar is not heard outside because The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The ringing is not loud enough The bell jar is too small The glass of the bell jar absorbs the sound waves There is no air or any other gas in the bell jar The ringing is not loud enough The bell jar is too small ANSWER DOWNLOAD EXAMIANS APP
Physics A white and smooth surface is Good absorber and good reflector of heat Bad absorber and good reflector of heat Bad absorber and bad reflector of heat Good absorber and bad reflector of heat Good absorber and good reflector of heat Bad absorber and good reflector of heat Bad absorber and bad reflector of heat Good absorber and bad reflector of heat ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 8500 A° – 9800 A° 1300 A°–3000 A° 7800 A° – 8000 A° 3900 A° – 7600 A° 8500 A° – 9800 A° 1300 A°–3000 A° 7800 A° – 8000 A° 3900 A° – 7600 A° ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following statements is true when we see ''rainbow' ? The sky remains clear and the sun is at lower position in the sky We face sun and raindrops In light rainfall, we face Sun The Sun remains behind us and we face raindrops The sky remains clear and the sun is at lower position in the sky We face sun and raindrops In light rainfall, we face Sun The Sun remains behind us and we face raindrops ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with non-uniform velocity and uniform acceleration Velocity – Time graph is linear Velocity – Time graph is nonlinear Displacement – Time graph is linear Displacement – Time graph is non-linear Velocity – Time graph is linear Velocity – Time graph is nonlinear Displacement – Time graph is linear Displacement – Time graph is non-linear ANSWER DOWNLOAD EXAMIANS APP
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