SSC CGL Science – Scientific Discoveries, Inventions & Space Technology – Level 3 · Challenge

← Back

SSC CGL Science – Scientific Discoveries, Inventions & Space Technology – Level 3 · Challenge – 8 questions, subject: General Science. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.

Get daily current affairs & exam alerts – follow us YouTube WhatsApp Channel Telegram Channel Facebook Page Instagram
Share with friends & study groups
Link to this page from your website / blog (HTML code)
1.  
Statement-basedWhich is/are correct (as per isro.gov.in)?
I. Aditya-L1 was launched by PSLV-C57.
II. Chandrayaan-2 was launched by GSLV MkIII-M1.
III. Chandrayaan-3 was launched by PSLV-C25.

Correct Answer: A [I and II only]

Explanation:

Chandrayaan-3 – LVM3 M4; PSLV-C25 launched MOM.

2.  
Chandrayaan-3 was launched on 14 July 2023 and soft-landed on 23 August 2023. How many days passed between launch and landing?

Correct Answer: D [40 days]

Explanation:

17 days left in July + 23 in August = 40.

3.  
Spot My Mistake"The 1890s gave us the electron (1895), X-rays (1896) and radioactivity (1897)." The error is:

Correct Answer: A [The years are mixed up – X-rays 1895, radioactivity 1896, electron 1897]

Explanation:

Answer: The years are mixed up – X-rays 1895, radioactivity 1896, electron 1897. X-R-E chain.

4.  
Reverse questionAn Indian scientist's work is honoured by a national day, he won the Nobel Prize in 1930, and his effect concerns scattering of light. He is:

Correct Answer: D [C. V. Raman]

Explanation:

28 February – National Science Day.

5.  
Assertion–ReasonAssertion (A): Aryabhata was launched from Sriharikota.
Reason (R): Aryabhata was India's first satellite.

Correct Answer: D [A is false but R is true]

Explanation:

A is false – Aryabhata was launched by a Soviet rocket from the Soviet Union; R is true.

6.  
On 18 July 1980, India's own launch vehicle SLV-3 successfully placed which satellite in orbit?

Correct Answer: B [Rohini (RS-1)]

Explanation:

SLV-3 from Sriharikota put Rohini RS-1 in orbit; India became the sixth space-faring nation.

7.  
True/False drillhow many are TRUE?
I. Marconi received a Nobel Prize for wireless telegraphy.
II. The first sounding rocket from Thumba was launched in 1963.
III. Lord Kelvin's real name was J. J. Thomson.
IV. Aditya-L1 studies the Sun from the L1 point.

Correct Answer: C [Three]

Explanation:

Lord Kelvin was William Thomson; the rest are true.

8.  
Two-quantity comparison
Quantity I: years from the telephone (1876) to the first powered flight (1903)
Quantity II: years from the transistor (1947) to the first laser (1960)

Correct Answer: B [Quantity I > Quantity II]

Explanation:

Answer: Quantity I > Quantity II. I = 27, II = 13 → I > II.

➤ Full notes, shortcuts and every answer explained – SSC CGL 2026 General Science book (₹149): www.shanmugamiasacademy.in/study-materials/ssc-cgl-general-science

📘 SSC CGL 2026 – General Science (Tier I + Tier II)
Here you get the answer with a one-line explanation. 1,110 original questions with answer key and explanations · mind-maps, notes, tables and shortcuts · Tier I and Tier II practice sets + 3 mock tests
Get the book – ₹149 ₹299 →
Score: 0 Answered: 0 / 0