Home
Class 12
PHYSICS
Energy (E) is expressed as E = ax + ( t ...

Energy (E) is expressed as `E = ax + ( t ^(2) sqrtb)/(m)` here m is for mass , x for distance and t for time. If the dimensions of `(b)/(a) is [M ^(p) L ^(q) T ^(R ) ],` then the value of p+q+r=______

Text Solution

Verified by Experts

The correct Answer is:
`00.00`

For principle of homogenety,
`[a] = ([E])/([x]) = ([M ^(1) L ^(2) T ^(-2)])/(L ^(1)) = [M ^(1) L ^(1) T ^(-1)]`
Also
Also
`[sqrtb] = ([m][E])/([t] ^(2))`
`= ( [ M ^(1) ] [M ^(1) L ^(2) T ^(-2)])/([T ^(2) ])`
`= [M ^(2) L ^(2) T ^(-4) ]`
`therefore [b] = [M ^(4) L ^(4) T ^(-8)]`
`therefore ([b])/( [a]) = ([M ^(4) L ^(4) T ^(-8)])/( [M ^(1) L ^(1) T ^(-2)]) = [ M ^(3) L ^(3) T ^(-6)]`
`= [M ^(p) L ^(q) T ^(r)]`
`therefore p + q + r = 3 + 3 - 6 =0`
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 47

    NTA MOCK TESTS|Exercise PHYSICS (SUBJECTIVE NUMERICAL)|10 Videos
  • NTA TPC JEE MAIN TEST 49

    NTA MOCK TESTS|Exercise PHYSICS |30 Videos

Similar Questions

Explore conceptually related problems

Let epsi_0 denote the dimensional formula of the permittivity of vacuum. If M= mass , L=length , T=time and A=electric current , then dimension of permittivity is given as [M^(p)L^(q)T^(r)A^(s)] . Find the value of (p-q+r)/(s)

The dimensions of R in the equations Q=Q_(0)(1-e^(-t//RC)) are

For a given expression of power, P= (a)/(bx)-(t^2)/(b) . Determine the dimensions of a and b. Here, x and t are distance and time respectively.

The dimensions of voltage in terms of mass (M), length (L) and time (T) and ampere (A) are

If m=2, n=3, p=4, q=0,r= 7 and s = 10, then the expression (3m+2n)/(q+p)-(4p-3n)/(q+r)+(2p+3m)/(q+m) has the value

If p,q and r simple propositions with truth values T, F, T, then the truth value of (~p vv q) ^^ ~ q to p is

Q's mother is the sister of P and daughter of M.S is the daughter of P and sister of T.How is M related to T?

Q's mother is the sister of P and daughter of M. S is the daughter of P and sister of T. How is M related to T ?

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 48-PHYSICS
  1. A block of mass 70kg is kept on a rough horizontal surface (mu=0.4) . ...

    Text Solution

    |

  2. Calculate the wavelength of sodium light In a biprism experiment with ...

    Text Solution

    |

  3. The work done in blowing a soap bubble of volume V is W, then what wil...

    Text Solution

    |

  4. If light travels at a distance x in time to seconds in air and 10x dis...

    Text Solution

    |

  5. A block having equilateral triangular cross-section of side a and mass...

    Text Solution

    |

  6. A spherical shell has mass one fourth of mass of a solid sphere and bo...

    Text Solution

    |

  7. On what factors does internal energy of an ideal gas depends?

    Text Solution

    |

  8. In a Young's double slit experiment, fringe width equal to 1 mm is obs...

    Text Solution

    |

  9. In the diagram shown, the block A and B are of the same mass M and the...

    Text Solution

    |

  10. A car of mass m is accelerating on a level smooth road under the actio...

    Text Solution

    |

  11. A metal has a work function phi(0) and its corresponding threshold wav...

    Text Solution

    |

  12. Calculate the resistivity (in Omega m) of a p type semiconductor if th...

    Text Solution

    |

  13. Internal energy of n(1) moles of monoatomic molecule of helium is sam...

    Text Solution

    |

  14. A current I is flowing through a loop. The direction of the current an...

    Text Solution

    |

  15. A source emitting sound of frequency 100 Hz . It is placed in front of...

    Text Solution

    |

  16. An air chamber of volume V has a neck of crosssectional area "a' into ...

    Text Solution

    |

  17. Energy (E) is expressed as E = ax + ( t ^(2) sqrtb)/(m) here m is for ...

    Text Solution

    |

  18. Consider a 100 m long wire of density 7700 kg //m^(3), Young's modulu...

    Text Solution

    |

  19. Two engines A & B are operated in series between three reservoirs at t...

    Text Solution

    |

  20. Consider a monoatomic ideal gas confined in an isolated closed chamber...

    Text Solution

    |