Home
Class 11
PHYSICS
If u(1) and u(2) are the units selected ...

If `u_(1)` and `u_(2)` are the units selected in two systems of measurement and `n_(1)` and `n_(2)` their numerical values, then

A

`n_(1)u_(1) = n_(2)u_(2)`

B

`n_(1)u_(1)+n_(2)u_(2) =0`

C

`n_(1)n_(2) = u_(1)u_(2)`

D

`(n_(1)+u_(3))=(n_(2) + u_(2))`

Text Solution

Verified by Experts

The correct Answer is:
a
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise CRITICAL THINKING ( SYSTEM OF UNITS)|1 Videos
  • MEASUREMENTS

    TARGET PUBLICATION|Exercise CRITICAL THINKING ( FUNDAMENTAL AND DERIVED UNITS)|9 Videos
  • MEASUREMENTS

    TARGET PUBLICATION|Exercise CLASSICAL THINKING( MISCELLANEOUS)|1 Videos
  • MAGNETISM

    TARGET PUBLICATION|Exercise MCQs|147 Videos
  • Motion in a plane

    TARGET PUBLICATION|Exercise Exercise|340 Videos

Similar Questions

Explore conceptually related problems

Number of particles is given by n=-D(n_(2)-n_(1))/(x_(2)-x_(1)) crossing a unit area perpendicular to X -axis in unit time, where n_(1) and n_(2) are number of particles per unit volume for the value of x meant to x_(2) and x_(1) . Find dimensions of D called as diffusion constant

Two planets revolve round the sun with frequencies N_(1) and N_(2) revolutions per year. If their average orbital radii be R_(1) and R_(2) respectively, then R_(1)//R_(2) is equal to

Root mean square velocities of the two gases at the same temperature are u_(1) and u_(2) . The molar masses are m_(1) and m_(2) respectively. Which of the following expression is CORRECT ?

Two particles of masses m_(1),m_(2) move with initial velocities u_(1) and u_(2) . On collision, one of the particles get excited to higher level, after absording enegry. If final velocities of particles be v_(1) and v_(2) then we must have

If y = (u -1)/(u + 1) and u = sqrt(x) , then (dy)/(dx) is

If (n+2)! = 210(n-1)! , then the value of n is

""_(1)mu_(2) ' or ' ""_(1)n_(2) ' is called as

Find the mass of 1 molecule of oxygen (O_2) in amu (u) and in grams.

1 a.m.u is equivalent to

If u_(1), u_(2), u_(3) "…..." represent the speed of n_(1), n_(2) , n_(3) ,"…..." molecules , then the root mean square speed is "____________" .