201UPSC1993General ScienceEnglish
The formation of glittering colours in thin foam of soap is the result of which of the following phenomenon?
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Correct option: A — Total reflection and interference
Free · past papers · answers included
General Science MCQ practice free online · page 21
Questions from RRB, NTPC, Group D and JE past papers. Tap an option to check it instantly — every question shows the correct answer, and most carry the explanation the paper gave.
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- 202UPSC1996General ScienceEnglish
Total internal reflection can take place when light travels from
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Correct option: A — Diamond to glass
- 203PPSC2018General ScienceEnglish
A cut diamond shines brilliantly due to
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Correct option: B — Total internal reflection
- 204UPPSC2010General ScienceEnglish
Optical fibre works on the principle of
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Correct option: A — Total internal reflection
- 205UPPSC2015General ScienceEnglish
Which one of the following phenomenon is used in optical fibres?
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Correct option: C — Total internal reflection
- 206HPPSC2017General ScienceEnglish
In fibre optics communication, the signal travels in the form of
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Correct option: A — Light wave
- 207UPPSC2009General ScienceEnglish
‘Endoscope’ used by the doctors for examining the inside of patient’s stomach, works on the principle of
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Correct option: D — Total internal reflection of light
- 208UPPSC2014General ScienceEnglish
An endoscope is a
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Correct option: D — None of the above
- 209UPPSC2012General ScienceEnglish
The reason of mirage is
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Correct option: D — Total internal reflection of light
- 210UPPSC2014General ScienceEnglish
Mirage formation is an example of
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Correct option: C — Total internal reflection
General Science practice — common questions
Page 21 of this set has 10 questions on it.
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Where do these General Science MCQs come from?
They are taken from official past papers of Indian government recruitment exams such as RRB NTPC, RRB Group D and RRB JE, and each question keeps a reference to the exam it appeared in.
Are the questions available in Hindi?
Yes. Many papers are set in both languages, so a large share of these questions are available in Hindi. Use the language filter at the top of the page.
Do the questions show answers and explanations?
Every question shows the correct option. Where the source paper included a worked solution, the explanation is shown under "Show answer".