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Q.

The velocity, acceleration and force in two systems of units are related as under:

 (i) v=α2βv    (ii) a=(αβ)a   (iii) F=1αβF

All the primed symbols belong to one system and unprinted ones belong to the other system. α and β arc dimensionless constants. Which of the following is/are correct?

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a

Length standards of the systems are related by: L=α3β3L

b

Time standards of the two systems are related by: T=αβ2T

c

Momentum standards of the systems are related by: P=1β3P

d

Mass standards of the two systems are related by: M=1α2β2M

answer is A, B, C, D.

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Detailed Solution

Velocity = length/time, acceleration = length/(time)2

  Length =( velocity )2 acceleration   i.e.,  L=v2a,L=v2a LL=vv2aa=α2β21αβ=α3/β3

Now, m=Fa,m=Fa

mm=FFaa=1αβ×1αβ=1α2β2

Time = velocity / acceleration, i.e.,

T=va and T=vaTT=vvaa=α2β1αβ=αβ2

Momentum = mass x velocity

p=mv,P=mv,pp=mmvv=1α2β2α2βα2β=1β3

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