Previous year MCQs

General science UPPSC 2002 GS-I
Question

An air bubble inside water behaves as a:

Answer & Solution

Answer: (Detailed Solution Below)

Option C: divergent lens

Detailed Solution:

The correct answer is “divergent lens”.
An air bubble inside water behaves like a concave lens, also known as a diverging lens.

Concave lens are used to treat myopia. Myopia, also known as nearsightedness or short-sightedness, is an eye condition that makes it difficult to see far away.

Similar Questions:

Consider the following statement regarding global warming:

1. Melting of polar ice caps and subsequently rise in the sea level is the most important effect of global warming.
2. The sea level in likely to rise by one meter by 2070 AD if the present level of global warming is not controlled.
3. All the coral islands in the world will be submerged
4. By 2044 AD, Fiji is likely to be submerged and rise in the sea level by the same year will pose a grave danger to the Netherlands.
  1. A) 1, 2, 3 and 4
  2. B) 4 only
  3. C) 1, 2 and 4
  4. D) 1, 2 and 3
Which type of vaccine protect against Diphtheria?
  1. A) Toxoid
  2. B) Live-attenuated
  3. C) mRNA
  4. D) Viral Vector
2, 4-D is:
  1. A) an insecticide
  2. B) an explosive
  3. C) a fungicide
  4. D) a herbicide
Mirage is an example of:
  1. A) Refraction
  2. B) Total internal reflection
  3. C) Dispersion
  4. D) Diffraction
Which one of the following are useful in the detection of landmines:
  1. A) Bee
  2. B) Wasp
  3. C) Butterfly
  4. D) Moth
Gas engine was invented by:
  1. A) Diesel
  2. B) Davy
  3. C) Daimler
  4. D) Charles
The temperature of the human body:
  1. A) decreases in winters
  2. B) increases in summers
  3. C) neither decreases in winters nor increases in summers
  4. D) increases in winters
Which one of the following is not a fundamental right:
  1. A) Right to Freedom
  2. B) Right to Equality
  3. C) Right to Property
  4. D) Right against exploitation
Which one of the following forms an irreversible complex with haemoglobin of the blood?
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  2. B) Pure Nitrogen gas
  3. C) Carbon monoxide
  4. D) A mixture of carbon dioxide and helium
If the doors of a refrigerator are left open for a few hours, the room temperature:
  1. A) will decrease
  2. B) will increase
  3. C) will remain the same
  4. D) will decrease only in the area in the vicinity of the refrigerator
The important metal used with iron to produce stainless steel is:
  1. A) carbon
  2. B) tin
  3. C) chromium
  4. D) aluminium
In human eye light rays get transformed into neural impulses at:
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  2. B) pupil
  3. C) retina
  4. D) lens