STATEMENT 1: `int_0^(pi/4)log(1+t a ntheta)d theta=pi/8log2.`
STATEMENT 2: `int_0^(pi/2)logsin theta d theta =-pilog2.`
(a) statement 1 is true, statement 2 is true, Statement 2 is the correct explanation for statement 1.
(b) statement 1 is true, statement 2 is true, Statement 2 is not correct explanation for statement 1.
(c) statement 1 is true, statement 2 is not true.

(d) statement 2 is true, statement 1 is not true.

Statement 1: A plane passes through the point A(2,1,-3)dot If distance of this plane from origin is maximum, then its equation is 2x+y-3z=14. Statement 2: If the plane passing through the point A( vec a) is at maximum distance from origin, then normal to the plane is vector vec a (a) Statement 1 is true, Statement 2 is true, Statement 2 is the correct explanation for Statement 1. (b) Statement 1 is true, Statement 2 is true, Statement 2 is not the correct explanation for Statement 1. (c) Statement 1 is true , Statement 2 is false. (d) Statement 2 is true, Statement 1 is false.

Statement 1: Mass of O^16 nucleus is less than the sum of masses of 9 protons and 8 neutrons. Statement 2: Some internal energy is needed to keept the protons and neutrons bound in the nucleus. (A) Statement 1 is true, Statement 2 is true. Statement 2 is not a correct explanation for statement 1. (B) Statement 1 is true, Statement 2 is true. Statement 2 is a correct explanation for statement 1. (C) Statement 1 is true, Statement 2 is false. (D) Statement 1 is false, Statement 2 is true.

Statement I: No natural radioisotope can emit positron. Statement II: Some artifically transmuted isotopes show radioactivity - some of these may emit positrons. (A) Statement I is true, statement II is true, statement II is a correct explanation for statement I. (B) Statement I is true, statement II is true, statement II is not a correct explanation for statement I. (C) Statement I is true , statement II is false. (D) Statement I is false, statement II is true.

Statement I: Negative charges are never emitted from the nucleus of an atom. Statement II: Nucleus of an atom is constituted only of protons and neutrons. (A) Statement I is true, statement II is true, statement II is a correct explanation for statement I. (B) Statement I is true, statement II is true, statement II is not a correct explanation for statement I. (C) Statement I is true, statement II is false. (D) Statement I is false, statement II is true.

Statement 1 : The number of circles passing through (1, 2), (4, 8) and (0, 0) is one. Statement 2 : Every triangle has one circumcircle (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1. (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1. (c) Statement 1 is true but Statement 2 is false. (d) Statement 2 is true but Statement 1 is false.

Statement 1: There are no common tangents between the circle x^2+y^2-4x+3=0 and the parabola y^2=2xdot Statement 2:Given circle and parabola do not intersect. (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1. (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1. (c) Statement 1 is true but Statement 2 is false. (d) Statement 2 is true but Statement 1 is false.

Statement 1: The normals at the points (4, 4) and (1/4,-1) of the parabola y^2=4x are perpendicular. Statement 2: The tangents to the parabola at the end of a focal chord are perpendicular. (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1. (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1. (c) Statement 1 is true but Statement 2 is false. (d) Statement 2 is true but Statement 1 is false.

Statement 1 : If the circle with center P(t ,4-2t),t in R , cut the circles x^2+y^2=16 and x^2+y^2-2x-y-12=0 , then both the intersections are orthogonal. Statement 2 : The length of tangent from P for t in R is the same for both the given circles. (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1 (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1 (c) Statement 1 is true but Statement 2 is false (d) Statement 2 is true but Statement 1 is false

Statement 1: If the parabola y^2=4a x and the circle x^2+y^2+2b x=0 touch each other externally, then the roots of the equation f(x)=x^2-(b+a+1)x+a=0 are real. Statement 2: For parabola and circle touching externally, a and b must have the same sign. (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1. (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1. (c) Statement 1 is true but Statement 2 is false. (d) Statement 2 is true but Statement 1 is false.

Statement 1: The circumcircle of a triangle formed by the lines x=0,x+y+1=0 and x-y+1=0 also passes through the point (1, 0). Statement 2: The circumcircle of a triangle formed by three tangents of a parabola passes through its focus. (a) Statement 1 and Statement 2 are correct. Statement 2 is the correct explanation for the Statement 1. (b) Statement 1 and Statement 2 are correct. Statement 2 is not the correct explanation for the Statement 1. (c) Statement 1 is true but Statement 2 is false. (d) Statement 2 is true but Statement 1 is false.