Home
Class 12
PHYSICS
{:("List-I","List-2"),((a)"Electron volt...

`{:("List-I","List-2"),((a)"Electron volt",(e)746 W),((b) "kWH", (f) 10^(-15)m),((c)"Horse power" ,(g) 36xx10^(5)J),((d) "Fermi ,(h) 1.6xx10^(-19)J):}`

A

a - h`" "` b- g `" "`c -e `" "` d-f

B

a - h`" "` b- f `" "`c -g `" "` d-e

C

a - g`" "` b- h `" "`c -e `" "` d-f

D

a - h`" "` b- g `" "`c -f `" "` d-e

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem of matching the items in List-I with those in List-2, we will analyze each item in List-I and find its corresponding value in List-2. ### Step-by-Step Solution: 1. **Identify the value of an Electron Volt (eV)**: - An electron volt is defined as the amount of kinetic energy gained by an electron when it is accelerated through an electric potential difference of one volt. - The value of 1 eV is equal to \(1.6 \times 10^{-19}\) joules. - **Match**: A (Electron Volt) matches with H (1.6 x 10^(-19) J). 2. **Identify the value of a Kilowatt Hour (kWh)**: - A kilowatt hour is a unit of energy equivalent to one kilowatt (1000 watts) used for one hour (3600 seconds). - Therefore, \(1 \text{ kWh} = 1000 \text{ W} \times 3600 \text{ s} = 3.6 \times 10^6 \text{ J}\). - **Match**: B (kWh) matches with G (36 x 10^5 J). 3. **Identify the value of Horse Power (HP)**: - Horsepower is a unit of power. 1 horsepower is equivalent to 746 watts. - **Match**: C (Horse Power) matches with E (746 W). 4. **Identify the value of a Fermi**: - A Fermi is a unit of length equal to \(10^{-15}\) meters. - **Match**: D (Fermi) matches with F (10^(-15) m). ### Final Matches: - A (Electron Volt) → H (1.6 x 10^(-19) J) - B (kWh) → G (36 x 10^5 J) - C (Horse Power) → E (746 W) - D (Fermi) → F (10^(-15) m) ### Summary of Matches: 1. A → H 2. B → G 3. C → E 4. D → F
Promotional Banner

Topper's Solved these Questions

  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise EXERCISE- 1 B|28 Videos
  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise EXERCISE -2|56 Videos
  • UNITS AND MEASUREMENTS

    AAKASH SERIES|Exercise PROBLEM|50 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

{:(,"Column I",,"Column II"),((A), 1 "fermi",(p),10^(-13) m),((B),1 "X-ray unit",(q),10^(-15) m),((C),1 "angstrom",(r),10^(-10) m),((D),1 "Astronomical unit",(s),9.46xx10^(15) m),((E),1 "Light year",(t),3.26 "Light year"),((F),1 "Parse",(u),3.08xx10^(16) m),(,,(v),1.49xx10^(11)m):}

8 g of O^(2-) ion has amount of charge equal to : (N_(A) = 6.02xx10^(23) , e = - 1.6xx10^(-19)C)

{:("List-I","List - 2"),((a)m^(-1),(e)"Surface tension"),((b)Pa,(f)"Thermal capacity"),((c)Jk^(-1),(g)"Rydberg constant"),((d) Jm^(-2),(h)"Energy density"):}

An electron revolves in a circule at the rate of 10^(19) rounds per second. The rquivlent current is (e=1.6xx10^(-19)C)

Give the order of the following : (a) 1 (b) 1000 (c ) 499 (d) 500 (e) 501) (f) 1 AU (1.496 xx 10^(11) m) (g) 1 Å (10(-10)m ) (h) Speed of light (3.00 xx 10^(8) m//s) (i) Gravitational constant (6.67 xx 10^(-11) N-m^(2)//kg^(2)) (j) Avogadro constant (6.02 xx 10^(23) mol^(-1)) (k) Planck's constant (6.63 xx 10^(-34) J-s) (l) Charge on electron (1.60 xx 10^(-19) C) (m) Radius of H - atom (5.29 xx 10^(-11)m) (n) Atmospheric pressure (1.01 xx 10^(5) Pa) (o) Mass of earth (5.98 xx 10^(24)kg) (p) Mean radius of earth (6.37 xx 10^(6)m)

Find de-Broglie wavelength of electron with KE =9.6xx10^(-19)J .

Calculate the pH of 1.0 xx 10^(-3) M sodium phenolate NaOC_(6)H_(5) K_(a) for C_(6)H_(5)OH is 1 xx 10^(-10)

For the reaction A + B to products, what will be the order of reaction with respect to A and B? {:("Exp",[A](mol L^(-1)),[B](mol L^(-1)),"Initial rate (mol L^(-1) s^(-1))),(1,2.5 xx 10^(-4), 3 xx 10^(-5), 5 xx 10^(-4)),(2,5 xx 10^(-4),6 xx 10^(-5), 4 xx 10^(-3)),(3, 1xx 10^(-3), 6 xx 10^(-5), 1.6 xx 10^(-2)):}

the radius of ""_(29)Cu^(64) nucleus in fermi is (given ,r_(0) 1.2xx10^(-15) M)

For a reaction 2NO(g) + 2H_(2)(g) rarr N_(2)(g)+2H_(2)O(g) the following data were obtained: |{:(,[NO] (mol L^(-1)),[H_(2)] (mol L^(-1)),"Rate" (mol L^(-1) s^(-1))),(1.,5 xx 10^(-3),2.5 xx 10^(-3),3 xx 10^(-5)),(2.,15 xx 10^(-3),2.5 xx 10^(-3),9xx10^(-5)),(3.,15 xx 10^(-3),10 xx 10^(-3),3.6 xx 10^(-4)):}| (a) Calculating the order of reactions. (b) Find the rate constant. (c ) Find the initial rate if [NO] = [H_(2)] = 8.0 xx 10^(-3) M

AAKASH SERIES-UNITS AND MEASUREMENTS-EXERCISE -1 A
  1. (A) : Plane angle has unit but no dimensional formula (B) : All dim...

    Text Solution

    |

  2. Dimensional formulae are used A) to convert one system of units into...

    Text Solution

    |

  3. (A) The correctness of an equation is verified using the principle of ...

    Text Solution

    |

  4. .(A): The value of dimensionless constants or proportionality constant...

    Text Solution

    |

  5. Which of the following is not a unit of time A) par sec B) light ye...

    Text Solution

    |

  6. Which of the following is dimensionless (a) Boltzmann constant (b) ...

    Text Solution

    |

  7. For a body in a uniformly accelerated motion, the distance of the body...

    Text Solution

    |

  8. Three of the quantities defined below has the same dimensional formula...

    Text Solution

    |

  9. If e, E0, h and C respectively represents electronic change, permittiv...

    Text Solution

    |

  10. Photon is quantum of radiation with energy E=hv, where v is frequency ...

    Text Solution

    |

  11. The displacement of a particle executing simple harmonic motion is giv...

    Text Solution

    |

  12. Match the following : {:("List - 1","List - 2"),((a) "second" ,(e) "...

    Text Solution

    |

  13. Match the following : {:("List - 1","List - 2"),((a) "second" ,(e) "...

    Text Solution

    |

  14. {:("List-I","List - 2"),((a)m^(-1),(e)"Surface tension"),((b)Pa,(f)"Th...

    Text Solution

    |

  15. {:("List-I","List-2"),((a)"Electron volt",(e)746 W),((b) "kWH", (f) 10...

    Text Solution

    |

  16. {:("List-I","List-2"),((a)"Pressure ",(e)ML^(2)T^(-2)I^(-1)),((b)"Late...

    Text Solution

    |

  17. Match the following : {:("List - 1","List - 2"),((a) "second" ,(e) "...

    Text Solution

    |

  18. h d G has the dimensions of (h = height , d = density , G = Gravitatio...

    Text Solution

    |

  19. Some physical constants are given in List-1 and their dimensional form...

    Text Solution

    |

  20. Dimensional formula formula for thermal conductivity is (here K denote...

    Text Solution

    |