History · Textbook solutions

Science and Technology

Every solved example, exercise, and miscellaneous question — in the order the textbook teaches them. · 15 questions

Exercises

15 q
  1. Choose the correct option from the given options and complete the statements.
    Ex Q1(A)(1)
    ………… was named as the first Chairman of atomic energy commission.
    1. A.
      Dr Homi Bhabha
    2. B.
      Dr Homi Sethna
    3. C.
      Dr A.P.J. Abdul Kalam
    4. D.
      Dr Raja Ramanna
  2. Ex Q1(A)(2)
    ………… was the first completely indigenous communication satellite made by ISRO.
    1. A.
      Aryabhatt
    2. B.
      Insat 1 B
    3. C.
      Rohini-75
    4. D.
      Apple
  3. Ex Q1(B)
    Identify and write the wrong pair. (1) Prithvi – surface to surface ballistic missile (2) Agni – surface to underwater ballistic missile (3) Akash – from surface to air attacking missile (4) Nag – anti-tank missile
  4. Complete the activity as per the given instruction.
    Ex Q2(A)
    Prepare a timeline of the progress of India in science and technology.
    1961 to 19701971 to 19801981 to 19901991 to 2000
    1961 – India’s first successful Rocket launch………………………………2000 – Restructuring of the Department of Telecommunications
  5. Write short notes on-
    Ex Q2(B)(1)
    Space research
  6. Ex Q2(B)(2)
    Telex service
  7. Ex Q2(B)(3)
    Pokhran nuclear test
  8. Ex Q2(B)(4)
    Bhaskar - 1 satellite
  9. Explain the following statements with reasons.
    Ex Q3(1)
    Pandit Nehru established the Atomic Energy Commission.
  10. Ex Q3(2)
    India decided to conduct nuclear tests.
  11. Ex Q3(3)
    USA imposed economic sanctions on India.
  12. Answer the following questions in detail.
    Ex Q4(1)
    Which of the everyday services are influenced by the satellite technology ?
  13. Ex Q4(2)
    Why is Dr. A.P.J. Abdul Kalam called as the ‘Missile Man’?
  14. Ex Q4(3)
    How one can do computerised reservation for rail travel ?
  15. Ex Q4(4)
    Write the key features of Konkan Railway.