Physics The period of revolution of a certain planet in an orbit of radius R is T. Its period of revolution in an orbit of radius 4R will be: 4 T 2 T 1 T 8 T 4 T 2 T 1 T 8 T ANSWER DOWNLOAD EXAMIANS APP
Physics When heated from 0 to 100oC volume of a given mass of water will : Decrease gradually Decrease and then will increase Increase gradually Increase and then will decrease Decrease gradually Decrease and then will increase Increase gradually Increase and then will decrease ANSWER DOWNLOAD EXAMIANS APP
Physics Why do birds not have respiratory trouble at the time of flying at high altitude ? They have extra air sacs They use less oxygen They fly inactively Their lungs are very large They have extra air sacs They use less oxygen They fly inactively Their lungs are very large ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is an example of continous emission spectrum? Spectrum of a water None Spectrum of an oil frame Both Spectrum of a water None Spectrum of an oil frame Both ANSWER DOWNLOAD EXAMIANS APP
Physics The device used for measuring the wavelength of X-rays is Cyclotron Bragg Spectrometer Mass Spectrometer G.M. Counter Cyclotron Bragg Spectrometer Mass Spectrometer G.M. Counter ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 20 J 30 J 50 J 40 J 20 J 30 J 50 J 40 J ANSWER DOWNLOAD EXAMIANS APP