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 Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Steel can be saved Accidents due to contraction in winter can be avoided Air-gaps are necessary for bearing the weight of running train Accidents due to expansion in summer can be avoided Steel can be saved ANSWER DOWNLOAD EXAMIANS APP
Physics If an object moves with constant velocity, It must have constant speed in constant direction It must have constant speed None of these It must have constant direction It must have constant speed in constant direction It must have constant speed None of these It must have constant direction ANSWER DOWNLOAD EXAMIANS APP
Physics Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation? Diffraction Interference Polarization Scattering Diffraction Interference Polarization Scattering ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following has the longest wavelength? Visible radiation Ultraviolet radiation X-ray radiation Infrared radiation Visible radiation Ultraviolet radiation X-ray radiation Infrared radiation ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following waves cannot be polarised? Infrared Ultrasonic Radio Ultra violet Infrared Ultrasonic Radio Ultra violet ANSWER DOWNLOAD EXAMIANS APP
Physics By how many times are the Electrostatic forces stronger than the Gravitational Forces for a fixed distance? 1036 2 102 1012 1036 2 102 1012 ANSWER DOWNLOAD EXAMIANS APP
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