Physics In the remote control of television, electromagnetic waves used are Ultraviolet Microwave Infrared Radiowave Ultraviolet Microwave Infrared Radiowave ANSWER DOWNLOAD EXAMIANS APP
Physics Light Emitting Diodes (LED) is used in fancy electronic devices such as toys emit X-rays visible light ultraviolet light radio waves X-rays visible light ultraviolet light radio waves ANSWER DOWNLOAD EXAMIANS APP
Physics Consider the following statements :1. There is no net moment on a body which is in equilibrium.2. The momentum of a body is always conserved.3. The kinetic energy of an object is always conserved.Which of the statements given above is/are correct? 1 and 2 only 2 and 3 only 1 only 1, 2 and 3 1 and 2 only 2 and 3 only 1 only 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Physics The intensity ratio of waves is 25 : 9. What is the ratio of their amplitudes? 0.12847222222222 0.21041666666667 2.0958333333333 1.0479166666667 0.12847222222222 0.21041666666667 2.0958333333333 1.0479166666667 ANSWER DOWNLOAD EXAMIANS APP
Physics Which tube used to produce X-ray? X-ray tube Roentgen Coolidge tube None of these X-ray tube Roentgen Coolidge tube None of these ANSWER DOWNLOAD EXAMIANS APP
Physics To resolve an object in an electron microscope, Both A & B The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. None of these Both A & B The wavelength of the electrons must be close to the diameter of the object The wavelength of the electrons must be greater than the diameter of the object. None of these ANSWER DOWNLOAD EXAMIANS APP
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