Latest IIT-JEE Aptitude Question SOLUTION: A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is less than the
critical angle. Then there will be
(A) only a reflec
A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is less than the
critical angle. Then there will be
(A) only a reflected ray and no refracted ray
(B) only a refracted ray and no reflected ray
(C) a reflected ray and a refracted ray and the angle between them would be less than 180° − 2θ
(D) a reflected ray and a refracted ray and the angle between them would be greater than 180° − 2θ
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The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference between the sum and the difference of the digits of the number if the ratio between the digits of the number is 1 : 2 ?