The Defence Research and Development Organisation's headquarters is located in ________.
New Delhi
The question asks about the location of the headquarters of the Defence Research and Development Organisation (DRDO). The DRDO is a premier agency under the Department of Defence Research and Development in the Ministry of Defence of the Government of India.
The DRDO's mission is to design, develop, and lead the production of advanced defence technologies and systems required by the Indian Armed Forces. It plays a crucial role in India's defence preparedness and technological self-reliance.
The central command and administrative hub for the DRDO, its headquarters, is situated in New Delhi. This strategic location allows for close coordination with the Ministry of Defence and other government bodies.
Therefore, the correct option identifying the location of the DRDO headquarters is New Delhi.
With reference to `Astrosat', the astronomical observatory launched by India, which of the following statements is/are correct?
1. Other than USA and Russia, India is the only country to have launched a similar observatory into space.
2. Astrosat is a 2000 kg satellite placed in an orbit at 1650 km above the surface of the Earth.
Select the correct answer using the code given below.
Consider the following statements: The Mangalyaan launched by ISRO
1. is also called the Mars Orbiter Mission
2. made India the second country to have a spacecraft orbit the Mars after USA
3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt
Which of the statements given above is/are correct?
Which of the following pair is/are correctly matched?

Select the correct answer using the code given below.
Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when:
1) The orbit is geosynchronous.
2) The orbit is circular.
3) The orbit lies in the plane of the Earth's equator.
4) The orbit is at an altitude of 22,236 km
Select the correct answer using the codes given below:
An artificial satellite orbiting around the Earth does not fall down. This is so because the attraction of Earth