Physics Which of the following metals is used for the manufacture of heating elements provided in electric iron ? Nickel Chromium Tungsten Nichrome Nickel Chromium Tungsten Nichrome ANSWER DOWNLOAD EXAMIANS APP
Physics The blue colour of sky is due to Scattering of shorter wavelengths of sunlight in the atmosphere Scattering of longer wavelengths of sunlight in the atmosphere Refraction of sunlight Reflection of sunlight Scattering of shorter wavelengths of sunlight in the atmosphere Scattering of longer wavelengths of sunlight in the atmosphere Refraction of sunlight Reflection of sunlight ANSWER DOWNLOAD EXAMIANS APP
Physics Optical fibre works on which of the following principle of light? Reflection Total internal reflection Diffraction Refraction Reflection Total internal reflection Diffraction Refraction ANSWER DOWNLOAD EXAMIANS APP
Physics A boat loaded with rocks floats in the middle of a swimming pool. A man in the boat throws the rocks overboard. The level of water in the pool will Decrease Increase First decrease and then increase Remains the same Decrease Increase First decrease and then increase Remains the same ANSWER DOWNLOAD EXAMIANS APP
Physics When temperature difference between liquid and its surroundings is doubled, the rate of loss of heat will: Double Four times Remain same Three times Double Four times Remain same Three times ANSWER DOWNLOAD EXAMIANS APP
Physics Lightning is produced when Clouds strike against impurities in air and the friction burns up these impurities Similar charges of electricity rush towards each other and then get repelled Water vapour produces electricity in the clouds Strong opposite charges in different clouds break down the resistance offered by the intervening air Clouds strike against impurities in air and the friction burns up these impurities Similar charges of electricity rush towards each other and then get repelled Water vapour produces electricity in the clouds Strong opposite charges in different clouds break down the resistance offered by the intervening air ANSWER DOWNLOAD EXAMIANS APP
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