Question

The Giant Metrewave Radio Telescope (GMRT) is related to
A. Superconductivity.
B. Generation, propagation and detection of electromagnetic waves.
C. Detection of cosmic radio waves.
D. Trapping and cooling of atoms by laser beams and magnetic fields.

Answer 1

Hint: Generally, a telescope uses the application of curved mirror and lens to view distant objects from the earth surface like other planes with the help of magnification.

Complete step by step solution:
The Giant Metrewave Radio Telescope (GMRT) is an international facility which operates at low radio frequency and ranges from 50 MHz to 1450 MHz. The Giant Metrewave Radio Telescope (GMRT) is used to detect the cosmic radio waves and support interferometry as well as array mode of operations. It has been operational and open to international participation since 2002. It has about 40% users from India, 60% from outside. GMRT Pune is among the world’s largest radio interferometer operating at meter wave. The Giant Metrewave Radio Telescope (GMRT) is good enough for the long wavelength. In GMRT, a large number of antennas are used to build a system like a long-range antenna.
The upgraded version of the Giant Metrewave Radio Telescope (GMRT) is uGMRT, which improves receiver with better dynamic range, increases bandwidth and gives modern, versatile control and monitor system. The upgraded uGMRT has more sensitivity that the GMRT and upgradation of GMRT can be done by increasing the antennas number and separation of the antennas. The GMRT is an essential instrument in astronomical studies which can give important information about the activities occurring in the universe.

Therefore, option (C) is correct; the Giant Metrewave Radio Telescope (GMRT) is related to the detection of cosmic radio waves.

Note: The Giant Metrewave Radio Telescope (GMRT) is used for screening of astrophysical objects and phenomena.