question_answer

  Palak was watching a programmer based on ships on television. She saw a device attached to a ship through which the man on the ship located the enemy submarines and sent the message to the headquarters. Read the above passage and answer the following questions (a) Name the device fitted in the ship. (b) Write the full form of the device. (c) On which principle does the device work? (d) Write other uses of the device. (d) Which value of Palak is shown here?  

Answer:

  (a)SONAR (b) Sound Navigation And Ranging           (c) Reflection of ultrasonic waves               (d) The other uses of the device are to determine the depth of sea and to locate under water hills, valleys, submarines, etc.                              (e) Palak shows the value of curiosity towards scientific things. She is curious to know about scientific facts, that's why she is watching such a programme.