Physics The sounds having a frequency of 20 Hertz to 20,000 Hertz are known as Ultrasonics Megasonics Infrasonics Audible sounds Ultrasonics Megasonics Infrasonics Audible sounds ANSWER DOWNLOAD EXAMIANS APP
Physics A drop of liquid assumes spherical shape because: Intermolecular forces are strong in liquids A sphere has the least surface area for a given volume A sphere has the largest surface area for a given volume Inter molecular forces are weak in liquids Intermolecular forces are strong in liquids A sphere has the least surface area for a given volume A sphere has the largest surface area for a given volume Inter molecular forces are weak in liquids ANSWER DOWNLOAD EXAMIANS APP
Physics In a railway track, two rails are joined end to end with a gap in between them because 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 Steel can be saved Accidents due to contraction in winter can be avoided Accidents due to expansion in summer can be avoided ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following experiments analyzed the Fraunhofer lines of the solar spectrum? Barkla's experiment on scattering of X-rays Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment Geiger and Marsdens experiment on scattering of alpha particles Barkla's experiment on scattering of X-rays Bunsen and Kirchhoff's experiment Lamb-Rutherford experiment Geiger and Marsdens experiment on scattering of alpha particles ANSWER DOWNLOAD EXAMIANS APP
Physics What is the SI unit of Power? Pascal Newton Watt Boyle Pascal Newton Watt Boyle ANSWER DOWNLOAD EXAMIANS APP
Physics Calculate the time period (in seconds) of a sound wave of wavelength 4m traveling with a speed of 500m/s 2000 0.016 0.008 1000 2000 0.016 0.008 1000 ANSWER DOWNLOAD EXAMIANS APP
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