R The size of air molecules on the moon is so small so

Last updated: 6/13/2023

R The size of air molecules on the moon is so small so scattering of sunlight does not take place 10 A If a concave mirror is kept in water its focal length decreases Focal length of concave mirror is independent of the refractive index of the medium used R 11 A pH of pure water is always 7 R Pure water contains equal concentration of hydronium ion and hydroxide ion