Match List-I with List-II and select the correct answer using the code given below the lists

List-I (Long column)

List-II

(Critical load)

P. Both ends are hinged 1. \(\frac{{{\pi ^2}EI}}{{4{l^2}}}\)

Q. One end is fixed & other end is free 2. \(\frac{{4{\pi ^2}EI}}{{{l^2}}}\)

R. Both ends are fixed 3. \(\frac{{2{\pi ^2}EI}}{{{l^2}}}\)

S. one end is fixed & other end is hinged 4. \(\frac{{{\pi ^2}EI}}{{{l^2}}}\)

Question

List-I (Long column)	List-II (Critical load)
P. Both ends are hinged	1. \(\frac{{{\pi ^2}EI}}{{4{l^2}}}\)
Q. One end is fixed & other end is free	2. \(\frac{{4{\pi ^2}EI}}{{{l^2}}}\)
R. Both ends are fixed	3. \(\frac{{2{\pi ^2}EI}}{{{l^2}}}\)
S. one end is fixed & other end is hinged	4. \(\frac{{{\pi ^2}EI}}{{{l^2}}}\)