The OptoSAR technology of GalaxEye brings together which two kinds of imaging?
- A.Synthetic Aperture Radar and electro-optical imaging
- B.LiDAR and thermal infrared imaging
- C.Hyperspectral imaging and radar altimetry
- D.Satellite navigation signals and sonar imaging
Correct answer
Explanation
The correct answer is Synthetic Aperture Radar and electro-optical imaging, and the name of the technology is itself the clue, since Opto stands for the optical sensor and SAR for the radar. The two are put on one platform because their weaknesses do not overlap: optical imaging gives rich visual detail but is defeated by cloud cover and by darkness, while radar works irrespective of daylight and can image through cloud. Fusing the two data streams therefore yields a fuller and less interrupted view of the ground, which is what makes wide-area surveillance, detection of people and vehicles and classification of targets possible in all weather. Options B, C and D list real remote-sensing techniques, but none of them is the pair named here, and option D also includes sonar, which works in water rather than from orbit.
Read the full article: TDB Gives GalaxEye Rs 63.84 Crore for OptoSAR Satellite
Practice Questions
How much support has the Technology Development Board agreed to give GalaxEye under the RDI Fund?
- A.Rs 36.48 crore
- B.Rs 63.84 crore
- C.Rs 84.63 crore
- D.Rs 127.50 crore
Show answer
Keep it apart from the other money figure in the same announcement, the total approved cost of the project, which is far larger; a question will often place the two side by side to see whether a candidate has confused the support with the whole outlay.
Read the full explanation →What is the total approved cost of the GalaxEye multisensor satellite project?
- A.Rs 147.69 crore
- B.Rs 247.69 crore
- C.Rs 347.69 crore
- D.Rs 447.69 crore
Show answer
This is the approved cost of the whole project, of which the Technology Development Board is supporting a part from the Research Development and Innovation Fund, the rest being borne by the company.
Read the full explanation →The RDI support is meant to take the OptoSAR technology through which readiness levels?
- A.TRL-1 to TRL-4
- B.TRL-3 to TRL-6
- C.TRL-6 to TRL-9
- D.TRL-4 to TRL-7
Show answer
Technology Readiness Level is a scale for how far a technology has travelled from an idea towards routine use, and the stretch named here is the late one: a system already demonstrated in conditions close to the real environment has to be engineered, tested and validated until it is proven…
Read the full explanation →As of 6 November 2026, how many equipment items were listed on the I-STEM portal?
- A.4,044
- B.18,250
- C.31,540
- D.45,000
Show answer
As of 6 November 2026, the day its API integration with the Startup India Portal was launched, I-STEM listed 31,540 equipment items across 4,044 registered institutions, giving researchers and innovators a large national pool of scientific resources.
Read the full explanation →Who chaired the launch of the API integration between the Startup India and I-STEM portals on 6 November 2026?
- A.Dr. Parvinder Maini
- B.Prof. Ajay Kumar Sood
- C.Ateesh Kumar Singh
- D.Dr. Vishal Choudhary
Show answer
He described the integration as an institutional convergence that can lower R&D costs, avoid duplication of capital-intensive facilities and raise the use of publicly funded infrastructure.
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