Question
Using the expression 2dsinθ=λ,one calculates the value of d by measuring the corresponding angles θ in the range 0^o to 90^°.The wavelength lambda is exactly known and the error in theta is constant for all values of theta as theta increases from 0^°, i)the absolute error in d remain constant ii)the absolute error in d increases iii)the fractional error in d remains constant iv)the fractional error in d increases