Physics A parallel-plate capacitor,with air in between the plates, has capacitance C. Now the space between the two plates of the capacitor is filled with a dielectric of dielectric constant 7. Then the value of the capacitance will become C 14C C/7 7C C 14C C/7 7C ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The velocity of electron is smaller than that of visible light The electrons have more energy than the light particles The wavelength of electrons is smaller as compared to the wavelength of visible light It uses more powerful lenses The velocity of electron is smaller than that of visible light ANSWER DOWNLOAD EXAMIANS APP
Physics What is the minimum escape velocity of rocket to be launched into space ? 15 Km/Sec. 6 Km/Sec. 11 Km/Sec. 5 Km/Sec. 15 Km/Sec. 6 Km/Sec. 11 Km/Sec. 5 Km/Sec. ANSWER DOWNLOAD EXAMIANS APP
Physics In the case of bodies falling under gravity which of the following remains constant at a given place? Kinetic energy Acceleration All listed here Potential energy Kinetic energy Acceleration All listed here Potential energy ANSWER DOWNLOAD EXAMIANS APP
Physics Velocity of sound in air does not depend on Humidity of air Density of air Pressure of air Temperature of air Humidity of air Density of air Pressure of air Temperature of air ANSWER DOWNLOAD EXAMIANS APP
Physics The pitch of sound depends on its Intensity Frequency Amplitude Velocity Intensity Frequency Amplitude Velocity ANSWER DOWNLOAD EXAMIANS APP
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