Physics A body absorbs heat most if it is Black and smooth White and smooth Black and rough White and rough Black and smooth White and smooth Black and rough White and rough ANSWER DOWNLOAD EXAMIANS APP
Physics Who enunciated the laws of planetary motion? Johannes Kepler Isaac Newton Nicolaus Copernicus Galileo Johannes Kepler Isaac Newton Nicolaus Copernicus Galileo ANSWER DOWNLOAD EXAMIANS APP
Physics Which phenomenon is responsible for the echo of sound wave? Reflection Refraction Polarisation Interference Reflection Refraction Polarisation Interference 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 The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as Ultrasonics Megasonics Audible sounds Infrasonics Ultrasonics Megasonics Audible sounds Infrasonics ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is responsible for the working of Newton's colour disc experiment ? Principle of complementary colour Persistence of vision Formation of pure spectra Formation of impure spectra Principle of complementary colour Persistence of vision Formation of pure spectra Formation of impure spectra ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS