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# Units and Dimensions – 1 – 7

31. In the SI system, the unit of temperature is :

(b) kelvin
(c) degree celsius
(d) degree fahrenheit

Explanation
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32. Which one of the following have same dimensions?

(a) Torque and force
(b) Potential energy and force
(c) Torque and potential energy
(d) Planck’s constant and linear momentum

Explanation
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33. Which of the following does not posses the same dimensions as that of pressure?

(a) Stress
(b) Bulk modulus
(c) Thrust
(d) Energy density

Explanation
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34. Which of the following is a dimensional constant?

(a) Poission’s ratio
(b) Refractive index
(c) Relative density
(d) Gravitational constant

Explanation
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35. Which one of the following is not the dimensionless quantity?

(a) Planck’s constant
(b) Dielectric constant
(c) Solid angle
(d) Strain