Physics What is refractive index ? 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 ratio of speed of light in the medium to the speed of light in vacuum. None of above It is defined as the product of speed of light in medium and 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 ratio of speed of light in the medium to the speed of light in vacuum. None of above It is defined as the product of speed of light in medium and in vacuum. ANSWER DOWNLOAD EXAMIANS APP
Physics The magnifying power of an astronomical telescope can be decreased by Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective Decreasing the focal length of the eyepiece None of these Increasing the focal length of the eyepiece Increasing the focal length of the objective ANSWER DOWNLOAD EXAMIANS APP
Physics Radiocarbon dating technique is used to estimate the age of rocks monuments soil fossils rocks monuments soil fossils ANSWER DOWNLOAD EXAMIANS APP
Physics The working of the quartz crystal in the watch is based on the Photoelectric Effect Johnson Effect Piezo - electric Effect Edison Effect Photoelectric Effect Johnson Effect Piezo - electric Effect Edison Effect ANSWER DOWNLOAD EXAMIANS APP
Physics Scalar Quantities are Physical quantities which have magnitude only and no direction Physical quantities which have no magnitude only and only direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and direction Physical quantities which have magnitude only and no direction Physical quantities which have no magnitude only and only direction Physical quantities which have no magnitude and no direction Physical quantities which have magnitude only and direction ANSWER DOWNLOAD EXAMIANS APP
Physics What type of force acts on a car moving around a curve? Centrifugal force Gravitational force Cohesive force Centripetal force Centrifugal force Gravitational force Cohesive force Centripetal force ANSWER DOWNLOAD EXAMIANS APP
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