Question

Which of the following is a dimensional variable *
(a) density
(b) angle
(c) strain
(d) specific gravity​

Answer 1

Answer:

Density

Explanation:

dimensional variable

p=m/v=[m°l°t°]+ variable

=/m°l°t°

[P]=[ML^-3]

s.h =ps/pwat 4℃=(1g/cm^3)

[S.G.)=m°l°t°]

Rod,°,',''

Straian=∆L/l m/ml/€

m°l°t°

Answer 2

Given : (a) density

(b) angle

(c) strain

(d) specific gravity

To Find :  Which  is a dimensional variable

Solution

density   = Mass / Volume  

=   M/L³

= ML⁻³

Hence density   is a dimensional variable

angle is Dimension less

strain  = ΔL/L   = Change in length / Length

= L/L

=  L⁰

Dimensionless

specific gravity is  ratio between the density of an object, and a reference substance

specific gravity = Density A / Density B    

Hence Dimensionless

density   is a dimensional variable in given options

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