Physics - Unit & Dimension Question with Solution | TestHub

PhysicsUnit & DimensionMiscellaneousEasy2 minPYQ_2020
PhysicsEasysingle choice

In a particular system, the unit of length, mass and time are chosen to be10 cm,10 gand0.1 srespectively. The unit of force in this system will be equivalent to -

Options:

Answer:
A
Solution:

Dimensionally

F=MLT-2

In C.G.S. system

1 dyne=1g 1 cm 1s-2

In the new system

1x=10 g10 cm0.1 s-2

1 dyne1 x=1 g10 g×1 cm10 cm10 s1 s-2

1 dyne=110,000×1x

104 dyne=1x

10x=105 dyne=1 N

x=110 N

 

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Unit & DimensionSubtopic:Miscellaneous
⏱ 2mℹ️ Source: PYQ_2020

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