JEE PYQ: Mathematics In Physics Question 18
Question 18 - 2019 (09 Jan Shift 2)
For the four sets of three measured physical quantities as given below. Which of the following options is correct?
(A) $A_1 = 24.36$, $B_1 = 0.0724$, $C_1 = 256.2$ (B) $A_2 = 24.44$, $B_2 = 16.082$, $C_2 = 240.2$ (C) $A_3 = 25.2$, $B_3 = 19.2812$, $C_3 = 236.183$ (D) $A_4 = 25$, $B_4 = 236.191$, $C_4 = 19.5$
(1) $A_4 + B_4 + C_4 < A_1 + B_1 + C_1 < A_3 + B_3 + C_3 < A_2 + B_2 + C_2$
(2) $A_1 + B_1 + C_1 = A_2 + B_2 + C_2 = A_3 + B_3 + C_3 = A_4 + B_4 + C_4$
(3) $A_4 + B_4 + C_4 < A_1 + B_1 + C_1 = A_2 + B_2 + C_2 = A_3 + B_3 + C_3$
(4) None of these
Show Answer
Answer: (4)
Solution
$D_1 = A_1 + B_1 + C_1 = 24.36 + 0.0724 + 256.2 = 280.6$ $D_2 = A_2 + B_2 + C_2 = 24.44 + 16.082 + 240.2 = 280.7$ $D_3 = A_3 + B_3 + C_3 = 25.2 + 19.2812 + 236.183 \approx 280.7$ $D_4 = A_4 + B_4 + C_4 = 25 + 236.191 + 19.5 = 281$ None of the option matches.
BETA
