Question
Which one of the following causes small air bubbles in
water, which is stored in a glass vessel, to appear to shine with a silvery luster? Directions : Each of the following five items consists of a word in capital letters, followed by four words or groups of words. Select the word or group of words that is most similar in meaning to the word in capital letters.Solution
The reason why the air bubble shines in water is because of the total internal reflection. • Total internal reflection is a phenomenon in which light travels back in the same medium or reflects back. It occurs when light travels from an optically denser to a rarer medium. • This happens in an air bubble in water when light travels from water to air and back out. This creates the shine or the silvery lustre. Hence option D is correct.
Conclusions:
I. All Passages can be Streets
II. Some Footpaths are RoadsÂ
Statements:
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No cabin is a room.
All rooms are houses.
No house is a flat.
Some flats are apartments.
Concl...
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Statements:
All plates are cups.
All cups are oranges.
Conclusions:
I. Some oranges are cups.
II. Some plates a...
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Statements:
Some A are B.
Only a few B are C.
All C are D.
Only a few D are E.
Conclusions:
I). Â No A is...
In the question below some statements are given followed by three conclusions I, II and III. You have to take the given statements to be true even if t...
Three statements are given followed by three conclusions numbered I, II, and III assuming the statements to be true, even if they seem to be at varian...
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if t...
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