Consider the following statements about Launch Vehicles of India :1. I...
Launchers or Launch Vehicles are used to carry spacecraft to space. The active operational launch vehicles of India are Polar Satellite Launch Vehicle (PSLV), Geosynchronous Satellite Launch Vehicle (GSLV), and Geosynchronous Satellite Launch Vehicle Mk-III (LVM3). Astrosat, India's first space observatory, will fly to its orbit 650 km from Earth, was successfully launched on 28 September 2015 from the Satish Dhawan Space Centre on board a Polar Satellite Launch Vehicle (PSLV-C30) .
Recently launched Small Satellite Launch Vehicle (SSLV), is the developmental launch vehicle of ISRO. The Polar Satellite Launch Vehicle (PSLV) is the third generation launch vehicle of India. It is the first Indian launch vehicle to be equipped with liquid stages. After its first successful launch in October 1994, PSLV emerged as India's reliable and versatile workhorse launch vehicle. PSLV is configured with four variants, 6,4,2 solid rocket strap-on motors & core-alone versions.
Variants will be chosen based on the payload weights & orbit to be accomplished. PSLV has been a versatile launch vehicle deployed for launching all three types of payloads, viz. Earth Observation, Geo-stationary and Navigation. It has got the highest success rate and is considered the workhorse of ISRO. Astrosat, the country's first astronomy observatory to study distant celestial objects, has been launched by India's Polar Satellite Launch Vehicle (PSLV).
India will be the only country with a multi-wavelength space-based observatory capable of monitoring intensity variations in a broad range of cosmic sources. So, Option (a) is correct.