271CGPSC2013General ScienceEnglish
For normal eyes what is the minimum distance for clear vision?
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Correct option: D — 25 cm
Free · past papers · answers included
General Science MCQ practice free online · page 28
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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- 272RPSC2003General ScienceEnglish
When beams of red, blue and green lights fall on the same spot, the colour of the light becomes
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Correct option: D — White
- 273CGPSC2014General ScienceEnglish
The change of focal length of an eye lense is caused by action of the
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Correct option: D — Iris
- 274BPSC1996General ScienceEnglish
If the lens power of glass is +2 dioptre, its focal length will be
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Correct option: C — 50 cm
- 275UPPSC1995General ScienceEnglish
Power of Sunglass is
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Correct option: A — 0 dioptre
- 276MPPSC2017General ScienceEnglish
The power of a lens is measured in
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Correct option: A — Dioptre
- 277UPSC1994General ScienceEnglish
Which one of the following combinations of aperture and shutter speed of a camera will allow the maximum exposure?
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Correct option: A — f-22, 1/60
- 278UPPSC2011General ScienceEnglish
Retina of the eye is comparable to which of the following parts of a traditional camera?
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Correct option: A — Film
- 279MPPSC2017General ScienceEnglish
In human eye, image of object forms at
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Correct option: D — Retina
- 280UPSC1994General ScienceEnglish
The colour of an opaque object is due to the colour it
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Correct option: C — Reflects
General Science practice — common questions
Page 28 of this set has 10 questions on it.
Are these General Science questions free to practise?
Yes. Every question on this page is free and needs no account. Create a free account only if you want your progress saved.
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".