Physics Surface tension in a liquid is due to : Cohesive force between molecules Adhesive force betweenmolecules Electrical force between molecules. Gravitational force between molecules Cohesive force between molecules Adhesive force betweenmolecules Electrical force between molecules. Gravitational force between molecules ANSWER DOWNLOAD EXAMIANS APP
Physics What is the wavelength of visible spectrum ? 3900 A° – 7600 A° 8500 A° – 9800 A° 7800 A° – 8000 A° 1300 A°–3000 A° 3900 A° – 7600 A° 8500 A° – 9800 A° 7800 A° – 8000 A° 1300 A°–3000 A° ANSWER DOWNLOAD EXAMIANS APP
Physics A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls Behind him Into his hand In front of him By his side Behind him Into his hand In front of him By his side ANSWER DOWNLOAD EXAMIANS APP
Physics A photon of X-ray has energy of 1 keV. A photon of visible radiation has energy of 3 eV. In this context, which one of the following statements is not correct? The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different Both the photons have different energies. The frequency of X-ray photon is higher than the frequency of visible radiation photon. The wavelength of X-ray photon is less than the wavelength of visible radiation photon. The speeds of both the photons in vacuum are different Both the photons have different energies. ANSWER DOWNLOAD EXAMIANS APP
Physics At hill stations, the boiling point of water will be Less than that at sea level Same as at sea level More than that at sea level Equal to the melting point of ice Less than that at sea level Same as at sea level More than that at sea level Equal to the melting point of ice ANSWER DOWNLOAD EXAMIANS APP
Physics Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be At the same level in both At a higher level in alcohol At a higher level in water Floating in alcohol and sinking in water At the same level in both At a higher level in alcohol At a higher level in water Floating in alcohol and sinking in water ANSWER DOWNLOAD EXAMIANS APP
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