Physics In SONAR which kind of wave is used? Ultrasonic Audible sound Radio Infrasonic Ultrasonic Audible sound Radio Infrasonic ANSWER DOWNLOAD EXAMIANS APP
Physics Which one of the following instruments is used to study dispersion of light ? Telescope Microscope Spectrometer Photometer Telescope Microscope Spectrometer Photometer ANSWER DOWNLOAD EXAMIANS APP
Physics A parallel-plate capacitor of capacitance C1 is made using two gold plates. Another parallel-plate capacitor of capacitance C2 is made using two aluminium plates with same plate separation, and all the four plates are of same area. If rg and ra are respectively the electrical resistivities of gold and aluminium, then which one of the following relations is correct? C2>C1 C1 = C2 C1pa = C2pg C1>C2 C2>C1 C1 = C2 C1pa = C2pg C1>C2 ANSWER DOWNLOAD EXAMIANS APP
Physics Solids which conduct electricity at higher temperature but not at lower temperature are called Super-conductor Insulator Metallic-conductor Semi-conductor Super-conductor Insulator Metallic-conductor Semi-conductor ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following was the first theory of superconductivity? London theory Quantum field theory Resonating valence bond theory Ginzburg Landau theory London theory Quantum field theory Resonating valence bond theory Ginzburg Landau theory ANSWER DOWNLOAD EXAMIANS APP
Physics Find the power of a convex lens if the image formed is at a distance of 16 cm from the lens when the object is placed on the other side of the lens at 20 cm from the optical centre? -11.25 diopters -3.75 diopters 3.75 diopters 11.25 diopters -11.25 diopters -3.75 diopters 3.75 diopters 11.25 diopters ANSWER DOWNLOAD EXAMIANS APP