Physics What is refractive index ? It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. It is defined as the product of speed of light in medium and in vacuum. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. It is defined as the ratio of speed of light in vacuum to the speed of light in the medium. It is defined as the product of speed of light in medium and in vacuum. None of above ANSWER DOWNLOAD EXAMIANS APP
Physics A transformer Converts DC to AC Converts AC voltage to D.C. voltage Converts electrical energy into mechanical energy Is used to decrease or increase AC voltage Converts DC to AC Converts AC voltage to D.C. voltage Converts electrical energy into mechanical energy Is used to decrease or increase AC voltage ANSWER DOWNLOAD EXAMIANS APP
Physics Megahertz is a measurement of Speed Frequency Wavelength Capacity Speed Frequency Wavelength Capacity ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following causes adiabatic temperature changes in atmosphere? Partial absorption of solar radiation by the atmosphere Latent heat of condensation Expansion and compression of the air Deflection and advection Partial absorption of solar radiation by the atmosphere Latent heat of condensation Expansion and compression of the air Deflection and advection ANSWER DOWNLOAD EXAMIANS APP
Physics Kepler's law of planetary motion states that the square of the time period is proportional to the Semi-major axis Fourth power of the semi-major axis Square of the semi-major axis Cube of the semi-major axis Semi-major axis Fourth power of the semi-major axis Square of the semi-major axis Cube of the semi-major axis ANSWER DOWNLOAD EXAMIANS APP
Physics The motion of a body that repeats itself after a regular interval of time is A periodic motion A simple harmonic motion An oscillatory motion An aperiodic motion A periodic motion A simple harmonic motion An oscillatory motion An aperiodic motion ANSWER DOWNLOAD EXAMIANS APP
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