Physics What is found in frequency modulation ? Change in frequency and dimension Fixed frequency Change in dimension only Fixed dimension Change in frequency and dimension Fixed frequency Change in dimension only Fixed dimension ANSWER DOWNLOAD EXAMIANS APP
Physics What is refractive index ? 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. 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 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. None of above It is defined as the ratio of speed of light in the medium to the speed of light in vacuum. ANSWER DOWNLOAD EXAMIANS APP
Physics In a diesel engine the high temperature needed to ignite the fuel is achieved by An electrical spark Using heat from exhaust Compressing air in the cylinders The battery An electrical spark Using heat from exhaust Compressing air in the cylinders The battery ANSWER DOWNLOAD EXAMIANS APP
Physics The rice is cooked more quickly in a pressure cooker because Less quantity of water is used. Water boils at a higher temperature under pressure. It is covered. None of these Less quantity of water is used. Water boils at a higher temperature under pressure. It is covered. None of these ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth Reflect back the heat given by earth Absorb heat from the atmosphere send it towards earth Produce heat and radiate it toward earth Prevent cold waves from the sky descending on earth ANSWER DOWNLOAD EXAMIANS APP
Physics For which of the following substances, the resistance decreases with increase in temperature? Pure silicon Copper Platinum Nichrome Pure silicon Copper Platinum Nichrome ANSWER DOWNLOAD EXAMIANS APP
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