AIEEE Exam

If angle of incidence increases, angle of reflection-
(1) Increase (2) Decrease
(3) Remains same (4) Can not say

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AIEEE Other Question

The coefficient of x^50 in (1 + x)^41 (1 – x + x^2
)^40 is Sound cannot pass through-
(1) vacuum (2) air
(3) liquid (4) solid