Physics Which one of the following is not a property of electromagnetic waves? Electromagnetic waves do not show interference and diffraction. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not show interference and diffraction. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves are transverse waves Oscillating electric field and magnetic field are perpendicular to each other. ANSWER DOWNLOAD EXAMIANS APP
Physics The unit of intensity of electric field is J/c N/m Volt N/c J/c N/m Volt N/c 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? 2 and 3 only 1 and 2 only 1 only 1, 2 and 3 2 and 3 only 1 and 2 only 1 only 1, 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Physics Why is it difficult to breathe at higher altitudes? Due to high humidity Due to ozone Due to low temperature Due to low air pressure Due to high humidity Due to ozone Due to low temperature Due to low air pressure ANSWER DOWNLOAD EXAMIANS APP
Physics A bomb at rest explodes into a large number of tiny fragments. The total momentum of all the fragments Depends on the speeds of various fragments Depends on the total mass of all the fragments Is zero Is infinity Depends on the speeds of various fragments Depends on the total mass of all the fragments Is zero Is infinity ANSWER DOWNLOAD EXAMIANS APP
Physics Woollen cloth protects the body from cold because It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It reflects heat It is a good conductor of heat It is a poor conductor of heat External heat rays enter into the body through the woollen cloth It reflects heat It is a good conductor of heat ANSWER DOWNLOAD EXAMIANS APP
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