Model Question Paper CET Physics - WIT Solapur

26. The odds against solving a problem by A and B are 3 : 2 and 2 : 1 respectively then theprobability that the problem will be solved is :(1) 3 (2) 2 (3) 2 (4) 115 15 5 1527. The pole of the line ιx = my +n =0 w.r.t. the parabola y 2 =4ax will be :(1) -n , - 2am (2) -n , 2 am1 1 1 1(3) n , -2am (4) n , 2am1 1 1 128. If 2x + y + λ = 0 is normal to the parabola y 2 = 8x then λ is :(1) -24 (2) ≠ 8 (3) -16 (4) 2429. If the line ιx = my + n = 0 is tangent to the parabola y 2 = 4ax then :(1) mn= aι 2 (2) ιm=an 2 (3) ιn=am 2 (4) none of therse30. f: R→ R, f(x) = x ⏐x ⏐ will be :(1) many one onto (2) one one onto(3) many are into (4) one one into31. lim (sec x – tan x) is equal to :x→π/2(1) 2 (2) -1 (3) 1 (4) 0log(1+2ax)-log(1-bx) ,32. If f(x) x x≠0K , x=0Is continuous at x = 0 then value of K is :(1) b + a (2) b – 2a (3) 2a – b (4) 2a + b33. If f(x) = x - 3 then f′ (3) is :(1) -1 (2) 1 (3) 0 (4) does not exist34. If tan x = 2t and sin y = 2t then the value of dy is :1 – t 2 1 + t 2 dx(1) 1 (2) t (3) 1 ___ (4) 1___1 – t 1 + t35. If x p + y q = (x + y) p+q then dy is :