Basic Maths and Units and DimensionsHard
Question
Figure shows a transparent block of front sides ′a′ and ′a′. The third dimension of the block is negligible. A point source S which can emit light in all directions can move inside the block. It is desired that no light of ′S′ should pass through AB. The region in which S should be present to satisfy this condition shown by shaded region. Choose correct option.
Options
A.
B.
C.
D.
Solution
sin C =
; C = 30oIf s is anywhere in the shaded region, the light rays from S will strike AB making an angle more than critical angle.
Create a free account to view solution
View Solution FreeTopic: Basic Maths and Units and Dimensions·Practice all Basic Maths and Units and Dimensions questions
More Basic Maths and Units and Dimensions Questions
The shape of the curve between the frequency of maximum emission nm and the temperature of the body T is :-...A infinitely long line charge having a uniform charge per unit length λ lies a distance d from point O. Determine t...Find the value of I and I1 in give circuit -...From a building two balls A and B are thrown such that A is thrown upward and B downwards (both vertically). If vA and v...A man is sitting inside a moving train and observes the objects outside of the rain. Choose the correct choice from the ...