Remembering the dimensions of physical quantities is an added advantage when it comes to objective type questions. This list will be very useful for t...
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Dimensional Formulae of Physical Quantities S.No
Physical Quantity
1. 2. 3. 4. 5. 6. 7. 8. 9. 10 . 11 . 12 . 13 .
Area Volume Mass density Frequency Velocity, speed Acceleration Force Impulse Work, Energy Power
Relationship with other physical quantities Length × breadth Length × breadth × height Mass/volume 1/time period Displacement/time Velocity/time Mass × Acceleration Force × Time Force × Distance Work/Time
Remark
Dimensional Formula 0 2 0 [M L T ] [M L3 T0] [M L–3 T0] [M0 L0 T–1] [M0 L T–1] [M0 L T–2] [M L T–2] [M L T–1] [M L2 T–2] [M L2 T–3]
Radiant flux, Radiant power Luminosity of radiant flux or radiant intensity Luminous power or luminous flux of source Luminous intensity of illuminating power of source Intensity of illumination or luminance Relative luminosity
Energy emitted/time
[M L2 T–3]
Radiant power or radiant flus of source Solid angle
[M L2 T–3]
Luminous energy emitted time
[M L2 T–3]
Luminous flux Solid angle
[M L2 T–3]
Luminous intensity
[M L0 T–3]
Luminous flux of a source of given wave length luminous flux of peak sensitivity wavelength ( 555nm ) sourc e of same power
[M0 L0 T0]
Luminous efficiency
Total luminous flux Total radiant flux Luminous flux incident area (sum of masses of nucleons) – (mass of the nucleus) Mass defect × (speed of light in vacuum)2 0.693/half life
[M0 L0 T0]
79 . 80 . 81 . 82 .
83 . 84 . 85 . 86 . 87 . 88 . 89 . 90 . 91 .
Wave number
Illuminance or illumination Mass defect Binding energy of nucleus Decay constant
4π × electric force × ( distance ) 2π × force × distance current × current length