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Start learning 50% faster. Sign in nowTotal internal reflection (TIR) is the phenomenon that involves the reflection of the entire incident light off the boundary. Glass prisms can be shaped to produce total internal reflection and as such are employed in binoculars, periscopes, telescopes, and other optical instruments. For the prism used in periscope, the light rays hitthe inside surface at ananglegreaterthanthecriticalangleof42and hence they are internally reflected.
If 10th May of a given year is Monday, what day of the week will be 11th July of the same year?
‘A and B’ means ‘A is the father of B’
‘A # B’ means ‘A is the son of B’
‘A ^ B’ means ‘A is the brother of B’s fa...
In a certain code language, 'NAME' is coded as '2473' and 'MEND' is coded as '7642'. What is the code for 'D' in the given code language?
A, B, C, D, E, F, G and H are sitting around a square table not facing the centre. Some of them are sitting at the corners while some are sitting at the...
What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘-’ are interchanged and ‘x’ and ‘÷’ are inte...
Pick up the pair that best illustrates a similar relationship.
Weight: Kilogram
Seven athletes A, B, C, D, E, F and G participate in a race. E is ahead of A but behind F. D is ahead of only two athlete. G is running last. C is runni...
Four figures have been given, out of which three are alike in some manner and one is different. Select the one that is different.
In the following question, select the figure which can be placed at the sign of question mark (?) from the given alternatives.
