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  • Question

  • Lightning is produced when


  • Options
  • A. Similar charges of electricity rush towards each other and then get repelled
  • B. clouds strike against impurities in air and the friction burns up these impurities
  • C. strong opposite charges in different clouds break down the resistance offered by the intervening air
  • D. water vapour produces electricity in the clouds

  • Correct Answer
  • strong opposite charges in different clouds break down the resistance offered by the intervening air 

    Explanation

    When the resistance of the air between breaks down the current flows from the positive cloud to the negative cloud in a flash which we call lightning . The difference of potential involves is very high.

    • More questions

    • 1. Which of these is not a computer?

    • Options
    • A. Aptiva
    • B. Macintosh
    • C. Acorn
    • D. Paseo
      • Discuss
    • 2. On July 12, 1982, the ARDC was merged into


    • Options
    • A. RBI
    • B. NABARD
    • C. EXIM Bank
    • D. None of the above
      • Discuss
    • 3. Outer covering of virus made up of protein is

    • Options
    • A. capsid
    • B. coat
    • C. virion
    • D. viriod
      • Discuss
    • 4. What is part of a database that holds only one type of information?

    • Options
    • A. Report
    • B. Field
    • C. Record
    • D. File
      • Discuss
    • 5. In which year did Milkha Singh win the first National title in the 400 m race?

    • Options
    • A. 1955
    • B. 1956
    • C. 1957
    • D. 1970
      • Discuss
    • 6. Bismillah Khan was associated with?

    • Options
    • A. Sarod
    • B. Shehnai
    • C. Flute
    • D. Tabla
      • Discuss
    • 7. The light of distant stars is affected by


    • Options
    • A. the earth's atmosphere
    • B. interstellar dust
    • C. both (a) and (b)
    • D. None of the above
      • Discuss
    • 8. The minor planets revolving between the orbits of Jupiter and Mars are called

    • Options
    • A. Novas
    • B. Comets
    • C. Meteors
    • D. Asteroids
      • Discuss
    • 9. HTML is used to...

    • Options
    • A. Plot complicated graphs
    • B. Author webpages
    • C. Translate one language into another
    • D. Solve equations
      • Discuss
    • 10. What is the Websites code for the country Mongolia?

    • Options
    • A. MN
    • B. ML
    • C. MG
    • D. MO
      • Discuss

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