Question
Which of the following statement is correct?
>I. The incident ray, the normal at the point of incidence and the reflected ray all lie in the same plane. II. Angle of incidence is always equal to the angle of reflectionSolution
From the laws of reflection, we know that the incident ray, the reflected ray and the normal all lie in the same plane. The first law of reflection states that when light is reflected from a surface, the angle of incidence is always equal to the angle of reflection, where both the angles are measured from the path of the light to the normal to the surface.
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
If digits of each number are added and sum is multiplied by 4, and the resultants are arranged in descending order, which number will be at last position?
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
( NOTE: Operations should be perfor...
If 2 is subtracted from the second digits of each of the numbers, how many numbers thus formed will be divisible by three?
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(15, 315, 7)
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
13, 38, 150, _____, 4478, 31341.
Select the options in which the numbers are related in the same way as are the numbers of the following set.
(541, 14, 737)
If 2 is added to all the odd place digits and 1 is subtracted from all even place digits (from the left end) in ‘634715247’ and then all the digits ...
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series:-
Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is relate...
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