Previous year MCQs

General science UPPSC 2005 GS-I
Question

Which one of the following statements is not true about cosmic rays?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: They are electromagnetic waves

Detailed Solution:

The correct answer is “They are electromagnetic waves”.
Cosmic rays are high-energy particles that travel at nearly the speed of light and are made up of atom fragments, mostly atomic nuclei.

They are not part of the electromagnetic spectrum, which includes gamma rays, X-rays, ultraviolet rays, visible light, infrared, microwaves, and radio waves.

Similar Questions:

Blue colour of the sky is due to:
  1. A) Scattering of light
  2. B) Dispersion of light
  3. C) Interference of light
  4. D) Emission of more blue light as compared to other colours by the sun
Given:

1. Blood cells
2. Bone cells
3. Hair strands
4. Saliva

Samples taken for DNA testing in criminal investigation can be
  1. A) 1, 2 and 3 only
  2. B) 1 and 4 only
  3. C) 2 and 3 only
  4. D) 1, 2, 3 and 4
Which one of the following gases, released from bio-gas plant is used as a fuel gas?
  1. A) Butane
  2. B) Propane
  3. C) Methane
  4. D) Ethane
It is difficult to walk on ice than on road because:
  1. A) Ice is harder than road
  2. B) Road is harder than ice
  3. C) Ice does not offer any reaction when we push it with our foot
  4. D) Ice has a lesser friction than road
Pencil lead is:
  1. A) graphite
  2. B) charcoal
  3. C) lamp blac
  4. D) coal
In India the highest decadal growth rate of population during 1991-2001 2001-2011 was recorded in:
  1. A) Bihar
  2. B) Meghalaya
  3. C) Sikkim
  4. D) Uttar Pradesh
Fruits stored in a cold chamber exhibit longer storage life because:
  1. A) exposure to sunlight is prevented
  2. B) concentration of carbon dioxide in the environment is increased
  3. C) rate of respiration is decreased
  4. D) there is an increase in humidity
Solar energy is due to:
  1. A) Ionization
  2. B) Nuclear Fusion
  3. C) Nuclear fission
  4. D) Oxidation
Which hormone is known as "fight or flight" hormone:
  1. A) Insulin
  2. B) Adrenaline
  3. C) Estrogen
  4. D) Oxytocin
Which one of the following is not correctly matched:
  1. A) ginger–rhizome
  2. B) saffron–seeds
  3. C) opium–poppy of opium
  4. D) flax–stem
In Uttar Pradesh the largest concentration of population is found in
  1. A) Agra district
  2. B) Allahabad district
  3. C) Ghaziabad district
  4. D) Kanpur Nagar district
Match list-I with list-II and select the correct answer using the code given below:
List-I (Radioisotope) - List-II (Diagnostic use)

A. Arsenic - 74 - 1. Activity of thyroid gland
B. Cobalt - 60 - 2. Blood disorder
C. Iodine-131 - 3. Tumor
D. Sodium-24 - 4. Cancer

Code:
A B C D
  1. A) 1 2 3 4
  2. B) 4 3 1 2
  3. C) 3 4 1 2
  4. D) 4 3 2 1