JEE Main 2025 Physics question

Consider a rectangular sheet of solid material of length = 9 cm and width d = 4 cm. The coefficient of linear expansion is K at room temperature and one atmospheric pressure. The mass of sheet m = 0.1 kg and the specific heat capacity = 900 J kgK. If the amount of heat supplied to the material is J then change in area of the rectangular sheet is

• (1) m
• (2) mCorrect
• (3) m
• (4) m