IIT-JEE Exam

A ray of light along x + sqrt3 y = sqrt3 gets reflected
upon reaching x-axis, the equation of the reflected
ray is -

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IIT-JEE Other Question

All the students of a class performed poorly in
Mathematics. The teacher decided to give grace
marks of 10 to each of the students. Which of the
following statistical measures will not change even
after the grace marks were given ?
(1) mode (2) variance
(3) mean (4) median The area (in square units) bounded by the curves
y = sqrtx , 2y – x + 3 = 0, x-axis, and lying in the
first quadrant is -