Home
Class 12
PHYSICS
In the measurement of a physical quantit...

In the measurement of a physical quantity `X = A^(2)B/C^(1//3)D^(3)` The percentage errors introduced in the measurement of the quantities A, B, C and D are 2%, 2%, 4% and 5% respectively. Then, the minimum amount of percentage error in the measurement of X is contributed by

Text Solution

Verified by Experts

`X = (A^2 B)/(C^(1//3) D^3) , (DeltaA)/(Z)% = 2% (Delta A)/(Z) % = 2% (DeltaB)/(B) % = 2% (DeltaC)/(C)% = 4% (DeltaD)/(D) % = 5%`
`(DeltaX)/(X) = 2(DeltaA)/(A) + (DeltaB)/(B) + 1/3 (DeltaC)/(C) + 1/3 (DeltaD)/(D)`
Percentage error in `X = (DeltaX)/(X) xx 100 = 2 (DeltaA)/(A) xx 100 + (DeltaB)/(B) xx 100 + 1/3 (DeltaC)/(C) + 3 xx (DeltaD)/D`
`=(2xx 2) + 2 + (1/3 xx 4) + (3xx5) = 22.34%`
`therefore ` The minimum amount of error is contributed in C.
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise SHORT ANSWER TYPE QUESTIONS|16 Videos
  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise VERY SHORT ANSWER TYPE QUESTIONS|24 Videos
  • UNITS AND MEASUREMENT

    AAKASH SERIES|Exercise PRACTICE EXERCISE|45 Videos
  • WAVE MOTION

    AAKASH SERIES|Exercise PRACTICE SHEET ADVANCED (INTEGER TYPE QUESTIONS)|10 Videos

Similar Questions

Explore conceptually related problems

If Y=a+b , the maximum percentage error in the measurement of Y will be

If Y=a-b , then maximum percentage error in the measurement of Y will be

If x = a/b , then the maximum percentage error in the measurement of 'x' will be

The error in the measurement of length and radius of a cylinder are 1% and 2% respectively. The maximum percentage of error in its volume is

AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -3
  1. In the measurement of a physical quantity X = A^(2)B/C^(1//3)D^(3) The...

    Text Solution

    |

  2. The length of a rectangular plate is measured as 10 cm by a vernier sc...

    Text Solution

    |

  3. The length of a metallic sheet is measured as 10.0 cm using a metre sc...

    Text Solution

    |

  4. The mass of a beaker is (10.1 pm 0.1)g when empty and (17.3pm0.1)g whe...

    Text Solution

    |

  5. The measured mass and volume of a body are 2.42 g and 4.7 cm^3 respect...

    Text Solution

    |

  6. When two resistors of (600pm3) ohm and (300pm 6) ohm are connected in ...

    Text Solution

    |

  7. Using a screw gauge the diameter of a wire is found to be, 1.51 mm, 1....

    Text Solution

    |

  8. Two resistors of 10KOmega and 20KOmega are conne cted in series. If t...

    Text Solution

    |

  9. A student performs experiment with a simple pendulum and measure time ...

    Text Solution

    |

  10. A physicist performs an experiment and takes 200 readings. He repeats ...

    Text Solution

    |

  11. In mecasuring g using a simple pendulum a student makes a positive err...

    Text Solution

    |

  12. The percentage error in surface area of a sphere is 6% then find the r...

    Text Solution

    |

  13. In the measurement of volume of solid sphere using the formula V=(4)/(...

    Text Solution

    |

  14. The external and internal diameters of a hollow cylinder are determine...

    Text Solution

    |

  15. Resistance of a given wire is obtained by mea- suring the current flow...

    Text Solution

    |

  16. In an experiment, the values of refractive index of glass were found t...

    Text Solution

    |

  17. A physical quantity is represented by X = M^(@)L^(b)T^(-c) . If the pe...

    Text Solution

    |

  18. In a simple pendulum experiment, length is measured as 31.4 cm with an...

    Text Solution

    |

  19. Two capacitors of capacities (3pm0.09)mu F and (6pm 0.09)muF are conne...

    Text Solution

    |

  20. In an experiment, the values of refractive index of glass were found t...

    Text Solution

    |

  21. A rectangular metal slab of mass 33.333 g has its length 8.0 cm, bread...

    Text Solution

    |