Physics For which of the following substances, the resistance decreases with increase in temperature? Copper Pure silicon Nichrome Platinum Copper Pure silicon Nichrome Platinum ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following is not a part of a CRT ? Gas plasma Electron gun Shadow mask Phosphor screen Gas plasma Electron gun Shadow mask Phosphor screen ANSWER DOWNLOAD EXAMIANS APP
Physics Which of the following liquids has the least density ? Petrol Fresh water Salt water Mercury Petrol Fresh water Salt water Mercury ANSWER DOWNLOAD EXAMIANS APP
Physics Cloudy nights are warmer compared to clear cloudless nights, because clouds mainly Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth Reflect back the heat given by earth Prevent cold waves from the sky descending on earth Produce heat and radiate it toward earth Absorb heat from the atmosphere send it towards earth ANSWER DOWNLOAD EXAMIANS APP
Physics When two similar sources vibrate with slightly different frequencies, a regular rise and fall occurs in the loudness of tone. This phenomenon is known as Doppler effect Resonance Echo Beats Doppler effect Resonance Echo Beats ANSWER DOWNLOAD EXAMIANS APP
Physics Visible light has a higher frequency than Radio waves X rays Ultra violet All listed here Radio waves X rays Ultra violet All listed here ANSWER DOWNLOAD EXAMIANS APP
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