Home
Class 12
MATHS
Assertion : Millikan's experiment establ...

Assertion : Millikan's experiment established that electric charge is quantised.
Reason : From this experiment mass of the electron could not be determined.

Text Solution

Verified by Experts

The correct Answer is:
A
`int_(0)^(pi//2) sinx dx=(((pi)/2-0))/4(sin 0+"sin"(pi)/2+2"sin"(pi)/4)`
`=(pi)/4(1+sqrt(2))`
`=(pi)/8(1+sqrt(2))`
Promotional Banner

Topper's Solved these Questions

  • DEFINITE INTEGRATION

    CENGAGE PUBLICATION|Exercise MATRIX MATCH_TYPE|6 Videos

  • DEFINITE INTEGRATION

    CENGAGE PUBLICATION|Exercise NUMERICAL VALUE_TYPE|28 Videos

  • DEFINITE INTEGRATION

    CENGAGE PUBLICATION|Exercise MCQ_TYPE|27 Videos

  • CURVE TRACING

    CENGAGE PUBLICATION|Exercise EXERCISES|24 Videos

  • DETERMINANT

    CENGAGE PUBLICATION|Exercise Multiple Correct Answer|5 Videos

Similar Questions

Explore conceptually related problems

Mention the experiment that shows that colloidal particles are electrically charged.

In Millikan's experiment, static electric charge on the oil drops has been obtained by shining X-rays. If the static charge on the oil drop is -1.282xx10^(-18)C , calculate the number of electrons present on it.

You are given a negatively charged pith ball, hanging from a string, and a non-conducting rod. As you bring the rod near the ball you find that the ball is attracted towards the rod. From this experiment it is not possible for you to determine whether the rod is charged positively or neutral. Why not? What additional experiment would you propose to conduct to decide between these two possibilities?

An electron (charge =-1.6xx10^(-19)C , mass =9.1xx10^(-31)kg ) enters a uniform electric field of magnitude 10V.m^(-1) with velocity 10^(6)m.s^(-1) normally to the direction of the field. If it covers 10 cm path inside that electric field, determine the displacement of the electron normal to the direction of its initial velocity.

From which experiment it was concluded that entire mass and positive charge are present at the centre of an atom?

"In the region where an electrical potential exists an electric charge always experience a force". Is the statement true? If not, write its correct form. Give an example in favour of your corrected statement.

Determine what conclusions can be drawn from the Miller and Urey’s experiment?

Assertion : In oxidative phosphorylation , the electrons flow from NADH to O_(2) . Reason :In photosynthesis , the electrons flow from H_(2)O to NADP.

CENGAGE PUBLICATION-DEFINITE INTEGRATION -LC_TYPE
  1. Let f(x) and phi(x) are two continuous function on R satisfying phi(x)...

    Text Solution

    |

  2. Find the area of a parallelogram whose adjacent sides are given by th...

    Text Solution

    |

  3. The value of int(0)^(1)(x^(a)-1)/(logx)dx is

    Text Solution

    |

  4. Evaluating integrals dependent on a parameter: Differentiate I with ...

    Text Solution

    |

  5. The value of (dI)/(da) when I=int(0)^(pi//2) log((1+asinx)/(1-asinx)) ...

    Text Solution

    |

  6. Evaluating integrals dependent on a parameter: Differentiate I with ...

    Text Solution

    |

  7. f(x)=sinx+int(-pi//2)^(pi//2)(sinx+tcosx)f(t)dt The range of f(x) is

    Text Solution

    |

  8. f(x)=sinx+int(-pi//2)^(pi//2)(sinx+tcosx)f(t)dt f(x) is not invertibl...

    Text Solution

    |

  9. f(x)=sinx+int(-pi//2)^(pi//2)(sinx+tcosx)f(t)dt The value of int(0)^(...

    Text Solution

    |

  10. Let u=int0^oo (dx)/(x^4+7x^2+1 and v=int0^oo (x^2dx)/(x^4+7x^2+1) then...

    Text Solution

    |

  11. Let u=int0^oo (dx)/(x^4+7x^2+1 and v=int0^oo (x^2dx)/(x^4+7x^2+1) then...

    Text Solution

    |

  12. If f(x)=int(0)^(1)(dt)/(1+|x-t|),x in R. The value of f'(1//2) is equa...

    Text Solution

    |

  13. If f(x)=int(0)^(1)(dt)/(1+|x-t|),x in R. The value of f'(1//2) is equa...

    Text Solution

    |

  14. Let f be a differentiable function satisfying int(0)^(f(x))f^(-1)(t)d...

    Text Solution

    |

  15. Let f be a differentiable function satisfying int(0)^(f(x))f^(-1)(t)d...

    Text Solution

    |

  16. If Un=int0^pi(1-cosnx)/(1-cosx)dx , where n is positive integer or zer...

    Text Solution

    |

  17. If Un=int0^pi(1-cosnx)/(1-cosx)dx , where n is positive integer or zer...

    Text Solution

    |

  18. Assertion : Millikan's experiment established that electric charge is ...

    Text Solution

    |

  19. If p1 and p2 are the lengths of the perpendiculars from the point (2,3...

    Text Solution

    |

  20. Let the definite integral be defined by the formula int(a)^(b)f(x)dx=(...

    Text Solution

    |