A dimensionless quantity is constructed in terms of electronic charge $e$, permittivity of free space $\varepsilon_0$, Planck's constant $h$, and speed of light $c$. If the dimensionless quantity is written as $e^\alpha \varepsilon_0^\beta h^7 c^5$ and $n$ is a non-zero integer, then $(\alpha, \beta, \gamma, \delta)$ is given by
  • A$(2 n,-n,-n,-n)$
  • B$(n,-n,-2 n,-n)$
  • C$(n,-n,-n,-2 n)$
  • D$(2 n,-n,-2 n,-2 n)$
IIT 2024, Easy
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    Dimensions of pair are same. Identify the pair
    View Solution
  • 2
    What is the number of significant figures in $11.118 \times 10^{ - 6}\,V$ 
    View Solution
  • 3
    The radius ( $\mathrm{r})$, length $(l)$ and resistance $(\mathrm{R})$ of a metal wire was measured in the laboratory as

    $\mathrm{r}=(0.35 \pm 0.05) \mathrm{cm}$

    $\mathrm{R}=(100 \pm 10) \mathrm{ohm}$

    $l=(15 \pm 0.2) \mathrm{cm}$

    The percentage error in resistivity of the material of the wire is :

    View Solution
  • 4
    Time period $T\,\propto \,{P^a}\,{d^b}\,{E^c}$  then value of $c$ is  given $p$ is pressure, $d$ is density and $E$ is energy
    View Solution
  • 5
    Dimensions of magnetic field intensity is
    View Solution
  • 6
    A screw gauge gives the following reading when used to measure the diameter of a wire.

    Main scale reading : $0\ mm$

    Circular scale reading : $52\ divisions$

    Given that $1\ mm$ on main scale corresponds to $100$ divisions of the circular scale. The diameter of wire from the above data is:

    View Solution
  • 7
    The pair(s) of physical quantities that have the same dimensions, is (are)
    View Solution
  • 8
    which of the following is not an unit of Length?
    View Solution
  • 9
    Consider following statements

    $(A)$ Any physical quantity have more than one unit

    $(B)$ Any physical quantity have only one dimensional formula

    $(C)$ More than one physical quantities may have same dimension

    $(D)$ We can add and subtract only those expression having same dimension

    Number of correct statement is

    View Solution
  • 10
    In a system of units if force $(F)$, acceleration $(A) $ and time $(T)$ are taken as fundamental units then the dimensional formula of energy is 
    View Solution