Question Discussion & Solution

Concept:

Indian Space Research Organisation (ISRO):

• It is the premier space agency of the government of India.
• Its vision is to harness space technology for national development while pursuing space science research and planetary exploration.
• The space research activities were initiated in India under Dr. Vikram Sarabhai, the founding father of the Indian space program, during the 1960s.
• ISRO established: 15 August 1969
• Headquarters: Bengaluru

​Explanation:

Vikram Sarabhai:

• Vikram Sarabhai was an Indian Physicist.
• He Initiated Space Research.
• He is also known as the 'Father of the Indian space program'.
• Vikram Sarabhai also researched cosmic Rays under Dr. C.V. Raman, a noble prize winner.

Thus, the Indian Space Research Center was formed by Vikram Sarabhai.

Additional Information 

Homi Baba:

• Homi Baba worked towards the development of nuclear power.
• Known as the 'Father of the Indian nuclear program'
• He founded the Tata Institute Of Fundamental Research. 

Rakesh Sharma:

• Rakesh Sharma is the first Indian citizen to travel to space.
• Rakesh Sharma flew aboard Soyuz T - 11 along with Yury Malyshev and Flight Engineer Gennadi Strekalov.
• He became the first Indian to enter space in 1984.
• He was an officer in the Indian Air Force.
• He was awarded the honour of “the Hero of the Soviet Union”.
• He also received Ashok Chakra, India’s highest peacetime gallantry award.

K Sivan:

• Dr K Sivan was the Chairman of Indian Space Research Organisation uptill 2021.
• He was born in 1957 in Kanyakumari, Tamil Nadu.
• Dr Sivan was inducted into Polar Satellite Launch Vehicle Project of ISRO in 1982.
• He also served as Director at Liquid Propulsion Systems Centre at ISRO and Vikram Sarabhai Space Centre.
• He assumed the office as chief of ISRO in 2018.

CONCEPT:

• Frequency (f): The number of waves that pass a given point per second is called frequency.
  • The unit of frequency is vibration per second or Hertz.

• Time period (T): The time taken to complete one full oscillation or cycle by the Wave is called the time period.

  • The SI unit of the time period is second (s).

EXPLANATION:

• From the above table, it is clear that time is the physics quantity that has the same unit in both C.G.S and the M.K.S system.

The correct answer is 192.10.23.350.

• Any address that begins with a 0 is invalid.
  • Exception - as a default route
• Any address with a number above 255 is invalid IP.
• Any address that has more than 3 dots is invalid IP.
• Any address that begins with a number between 240 and 255 is reserved and is invalid.
• Any address that begins with a number between 224 and 239 is reserved for multicast, and it is probably invalid.

Key Points

• An Internet Protocol address (IP address) is a numerical number assigned to every computer and device.
• It is used when connected to a computer network that uses the Internet Protocol for communication.
• An IP address serves two main functions:
  • host or network interface identification
  • location addressing.

The correct answer is Rav Ganga.

Key Points

• Rav Ganga-
  • He was the grandson of  Rav Suja.
  • His father's name was Rav Bagha.
  • He gave his support to Rana Sanga in the Khanwa battle.
  • He fought Sevaki battle with Nagore's Daulat Khan.
  • He built Ganglav pond and Ganga's Bawri in Jodhpur.
  • He was killed by his son Rav Maldev.

Additional Information

• Rav Sataldev-
  • He was the son of Rav Jodha.
  • He established Satalmer town in Jaisalmer.
  • He fought a battle with Hakim Mallu Khan.
  • He killed Hakim Mallu Khan's commander Ghudle Khan and freed many girls from him.
  • Ghudla dance was performed in his reign.
• Rav Suja-
  • He was the son of Rav Jodha.
  • He was the younger brother of Rav Sataldev.
  • His son Rav Bagha was killed when fighting in Sojat.
  • He fought a battle with Rav Beeka for the State emblem.
• Rav Jodha-
  • He was the son of Rav Ranmal.
  • He did the Awal-Bawal treaty with Rana Kumbha.
  • He defeated Akka Sisodiya and Ahara Hingola in 1453 AD and captured Mandore.
  • He established Jodhpur city in 1459 AD.
  • He built the Mehrangarh fort on Chiriyatook hills.

The correct answer is Haribhau Upadhyay.

Key Points 

• Haribhau Upadhyay-
  • He was the Chief Minister of Ajmer State from 1952 to 1956.
  • He became the first dictator of Rajasthan for the Salt Satyagraha.
  • He violated the salt law in Ajmer during the Salt Satyagraha.
  • He was the editor general of some newspapers – Audumbar, Navjeevan, Tyag Bhoomi.
  • He also established Gandhi Ashram at Hatundi in Ajmer.

Additional Information 

• Mankiyalal Varma also known as Gandhi of Mewar, the book Present Governance of Mewar was written by him.
• Shobharam Kumawat was the first Prime Minister of Matsya Sangh, he was associated with Alwar Prajamandal.
• Jay Narayan Vyas is known as the folk hero of Rajasthan/Sher-e-Rajasthan/Masab.