Skip to content

Home › Exam notes › SSC CGL › Scientific Research & Everyday Science

Scientific Research & Everyday Science

General Awareness — Paper-I · Official 2026 Coverage

Useful for: SSC CGL

हिंदी में पढ़ें

Overview

This Tier-II topic extends everyday science to research institutions, technology applications and the principles behind them.

Key points

ISRO (space), DRDO (defence), CSIR (industrial research), ICMR (medical research), DAE (atomic energy).
Optical fibres work on total internal reflection.
Solar cells convert light directly into electricity (photovoltaic effect).
MRI uses strong magnetic fields; X-rays are high-energy electromagnetic waves.
Biotechnology tools include vaccines, enzymes and genetic testing.

Explanation

Nuclear power plants use fission; the Sun produces energy by fusion.
Lithium-ion batteries power phones and electric vehicles.
Ozone in the upper atmosphere absorbs ultraviolet radiation.
Antibiotics act on bacteria, not viruses.

Step by step

Identify the exact fact asked (person, year, article, place).
Recall it from a linked group, not in isolation.
Eliminate options from the wrong period or category.

Examples

Optical fibres work on → total internal reflection.
The Sun’s energy comes from → nuclear fusion.
Medical research in India is coordinated by → ICMR.

Traps and advanced points

Trap: Mixing fission and fusion.
Trap: Thinking antibiotics cure viral infections.
Trap: Mixing CSIR and ICMR fields.

Quick revision

Institution ↔ field table.
Fusion in the Sun; fission in reactors.
Total internal reflection in fibres.

Practice MCQs

Deficiency of vitamin C causes
1. night blindness
2. rickets
3. scurvy
4. beriberi
Read chapter notes · Similar questions
Show answer
Answer: (c) scurvy. Rickets is due to vitamin D and night blindness to vitamin A.
Vinegar mainly contains
1. hydrochloric acid
2. citric acid
3. lactic acid
4. acetic acid
Read chapter notes · Similar questions
Show answer
Answer: (d) acetic acid. Usually about 5–8% acetic acid.
A rainbow forms mainly because of
1. magnetism
2. reflection from clouds only
3. scattering by dust
4. dispersion of sunlight by water droplets
Read chapter notes · Similar questions
Show answer
Answer: (d) dispersion of sunlight by water droplets. Refraction, dispersion and internal reflection inside drops.
Oxygen is carried in the blood mainly by
1. platelets
2. haemoglobin
3. plasma proteins only
4. white blood cells
Read chapter notes · Similar questions
Show answer
Answer: (b) haemoglobin. Haemoglobin is found in red blood cells.
The chemical name of baking soda is
1. sodium carbonate
2. sodium bicarbonate
3. calcium carbonate
4. sodium chloride
Read chapter notes · Similar questions
Show answer
Answer: (b) sodium bicarbonate. Its formula is NaHCO₃.
The SI unit of electric power is the
1. ohm
2. volt
3. ampere
4. watt
Read chapter notes · Similar questions
Show answer
Answer: (d) watt. 1 W = 1 J/s.

More topics in this chapter

Notes and questions are written by Kundali IQ for practice. They are not official papers; always check the latest official notification for the syllabus and pattern.