When Mendel crossed Tall plant with Dwarf plant what was the ratio of dwarf plants obtained in F2 generation

When Mendel crossed tall plant (with TT traits) with dwarf plant (with tt traits), all tall plants were obtained (F1 generation). But when F1 plants were self-fertilized, some tall (75%) and some dwarf plants were obtained (25%) in F2 generation. This means that both the characters (tallness and dwarfness) were inherited in F1 generation from the parents, but only the character for tallness was expressed.