Question

Form pairs
‘A’ Groups
(i) X-rays
(ii) Optical Telescope
(iii) Indian radio telescope
(iv) Launching artificial satellites
‘B’ Groups(a) GMRT(b) ISRO(c) Hubble(d) Chandra

Answer 1

"From the given pairs of the question can be rearranged as:

i)  X-ray - Chandra - it was previously known as advanced astrophysics facility as an X-ray observatory.

ii) Optical telescope - Hubble's space telescope and has an inbuilt Optical Telescope assembly system.

iii) Indian radio telescope - GMRT (Giant Metrewave Radio Telescope).

iv) Launching artificial satellites - ISRO is an expansion for Indian Space Research Organisation."