A certain physical quantity is calculated from the formula 3 (a^2-b^2 ) h d , where a, b and h are all lengths and d is density. The physical quantity being calculated is

Step-by-step solution

3 (a^2-b^2 ) hd ...(1) a, b, h has length "l" so there unit is m ( L ) d = density = Mass volume = kg m ^3 = M L ^3 3 has no dimensions from equation (1) Now, ( L ^2- L ^2 ) M L ^3 ( ~L ) L ^3 M L ^3 = M Mass