Physics Which of the following is a conductor of electricity ? Salt water Rubber Benzene Pure water Salt water Rubber Benzene Pure water ANSWER DOWNLOAD EXAMIANS APP
Physics When light passes from one medium to another, this phenomenon of change in its direction is called ________ Diffraction Propagation Refraction No option is correct Diffraction Propagation Refraction No option is correct ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following is not a property of electromagnetic waves? Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves are transverse waves Electromagnetic waves do not show interference and diffraction. Oscillating electric field and magnetic field are perpendicular to each other. Electromagnetic waves do not require a medium to propagate. Electromagnetic waves are transverse waves Electromagnetic waves do not show interference and diffraction. ANSWER DOWNLOAD EXAMIANS APP
Physics To prevent damage from lightning, lightning conductors are used on tall structures. The lightning conductor Should be in the form of a vertical rod Should be made of a good conductor but can be of any shape Can be of any shape Should be made of a good conductor like copper with sharp-pointed edges Should be in the form of a vertical rod Should be made of a good conductor but can be of any shape Can be of any shape Should be made of a good conductor like copper with sharp-pointed edges ANSWER DOWNLOAD EXAMIANS APP
Physics The frequency of ultrasound wave is typically Below 20 kHz Below 02 kHz Above 20,000 kHz Above 20 kHz Below 20 kHz Below 02 kHz Above 20,000 kHz Above 20 kHz ANSWER DOWNLOAD EXAMIANS APP
Physics To convert temperature from Celcius to Kelvin scale, you must ________ the given temperature. Divide by 273 Multiply 273 Add 273 Subtract 273 Divide by 273 Multiply 273 Add 273 Subtract 273 ANSWER DOWNLOAD EXAMIANS APP
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