Physics A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is: 100 J 50 J 75 J 150 J 100 J 50 J 75 J 150 J ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the metals has the maximum thermal conductivity? Copper Aluminium Iron Silver Copper Aluminium Iron Silver ANSWER DOWNLOAD EXAMIANS APP
Physics A star appears twinkling in the sky because of Diffraction of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere Diffraction of light by atmosphere Reflection of light by atmosphere Refraction of light by atmosphere Scattering of light by atmosphere ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because Steel can be saved Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train Steel can be saved Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided Air-gaps are necessary for bearing the weight of running train ANSWER DOWNLOAD EXAMIANS APP
Physics One Kilowatt hour is equal to - 3.2 Mega Joule 4.0 Mega Joule 3.8 Mega Joule 3.6 Mega Joule 3.2 Mega Joule 4.0 Mega Joule 3.8 Mega Joule 3.6 Mega Joule ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not caused by atmospheric refraction of light ? Sun appearing red at sunset Sun becoming visible two or three minutes before actual sunrise Twinkling of stars at night Sun appearing higher in the sky than it actually is Sun appearing red at sunset Sun becoming visible two or three minutes before actual sunrise Twinkling of stars at night Sun appearing higher in the sky than it actually is ANSWER DOWNLOAD EXAMIANS APP
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