Target RRB JE CBT 1-Important
Target RRB JE CBT 1-Important Units And Theirs Dimension
According to analysis of RRB exam recently held for various post,1-2 question in every shift asked from units and dimensions in general science so here in today target RRB JE CBT 1 we are providing important units and dimensions, Expected from these one question surely will come.
Target RRB JE CBT 1-Important
PDF for this have given at last aspirant can download it.
All physical quantities are said to be described by its dimensions.
There are 7 (seven) fundamental quantities, hence, 7 (seven) fundamental dimensions.
Target RRB JE CBT 1-Important
| Derived quantity | Symbol | SI derived unit | Dimension | Scalar/Vector |
| Absement | A | m s | L T | vector |
| Absorbed dose rate | Gy s⁻¹ | L² T⁻³ | ||
| Acceleration | a→ | m s⁻² | L T⁻² | vector |
| Angular acceleration | α | rad s⁻² | T⁻² | |
| Angular momentum | L | kg m² s⁻¹ | M L² T⁻¹ | vector |
| Angular speed (or angular velocity) | ω | rad s⁻¹ | T⁻¹ | scalar |
| Area | A | m² | L² | scalar |
| Area density | ρA | kg m⁻² | M L⁻² | |
| Capacitance | C | farad (F = A² s⁴ kg⁻¹ m⁻²) | M⁻¹ L⁻² T⁴ I² | scalar |
| Catalytic activity | katal (kat = mol s⁻¹) | T⁻¹ N | ||
| Catalytic activity concentration | kat m⁻³ | L⁻³ T⁻¹ N | ||
| Chemical potential | μ | J mol⁻¹ | M L² T⁻² N⁻¹ | |
| Crackle | c→ | m s⁻⁵ | L T⁻⁵ | vector |
| Current density | J → | A m⁻² | L⁻² I | vector |
| Dose equivalent | H | sievert (Sv = m² s⁻²) | L² T⁻² | |
| Dynamic viscosity | η | Pa s | M L⁻¹ T⁻¹ | |
| Target RRB JE CBT 1-Important |
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| Electric charge | Q | coulomb (C = A s) | T I | |
| Electric charge density | ρQ | C m⁻³ | L⁻³ T I | |
| Electric displacement | D | C m⁻² | L⁻² T I | vector |
| Electric field strength | E→ | V m⁻¹ | M L T⁻³ I⁻¹ | vector |
| Electrical conductance | G | siemens (S = A² s³ kg⁻¹ m⁻²) | M⁻¹ L⁻² T⁻³ I² | scalar |
| Electrical conductivity | σ | S m⁻¹ | M⁻¹ L⁻³ T⁻³ I² | scalar |
| Electric potential | V | volt (V = kg m² A⁻¹ s⁻³) | M L² T⁻³ I⁻¹ | scalar |
| Electrical resistance | R | ohm (Ω = kg m² A⁻² s⁻³) | M L² T⁻³ I⁻² | scalar |
| Electrical resistivity | ρ | ohm metre (Ω⋅m = kg m³ A⁻² s⁻³) | M L³ T⁻³ I⁻² | scalar |
| Energy | E | joule (J = kg m² s⁻²) | M L² T⁻² | scalar |
| Energy density | ρE | J m⁻³ | M L⁻¹ T⁻² | |
| Entropy | S | J K⁻¹ | M L² T⁻² Θ⁻¹ | scalar |
| Force | F→ | newton (N = kg m s⁻²) | M L T⁻² | vector |
| Frequency | f | hertz (Hz = s⁻¹) | T⁻¹ | scalar |
| Fuel efficiency | m m⁻³ ( = m/m³) | L⁻² | scalar | |
| Half-life | t1/2 | s | T | |
| Heat | Q | joule (J) | M L² T⁻² | |
| Heat capacity | Cp | J K⁻¹ | M L² T⁻² Θ⁻¹ | |
| Heat flux density | ϕQ | W m⁻² | M T⁻³ | |
| Illuminance | Ev | lux (lx = cd sr m⁻²) | L⁻² J | |
| Target RRB JE CBT 1-Important |
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| Impedance | Z | ohm (Ω = kg m² A⁻² s⁻³) | M L² T⁻³ I⁻² | scalar |
| Impulse | J | newton second (N⋅s = kg m s⁻¹) | M L T⁻¹ | vector |
| Inductance | L | henry (H = kg m² A⁻² s⁻²) | M L² T⁻² I⁻² | scalar |
| Irradiance | E | W m⁻² | M T⁻³ | |
| Intensity | I | W m⁻² | M T⁻³ | |
| Jerk | j→ | m s⁻³ | L T⁻³ | vector |
| Jounce (or snap) | s→ | m s⁻⁴ | L T⁻⁴ | vector |
| Kinematic viscosity | v→ | m² s⁻¹ | L² T⁻¹ | scalar |
| Linear density | ρl | kg m⁻¹ | M L⁻¹ | |
| Luminous flux (or luminous power) | F | lumen (lm = cd sr) | J | |
| Target RRB JE CBT 1-Important |
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| Mach number (or mach) | M | unitless | 1 | |
| Magnetic field strength | H | A m⁻¹ | L⁻¹ I | vector |
| Magnetic flux | Φ | weber (Wb = kg m² A⁻¹ s⁻²) | M L² T⁻² I⁻¹ | scalar |
| Magnetic flux density | B | tesla (T = kg A⁻¹ s⁻²) | M T⁻² I−1 | |
| Magnetization | M | A m⁻¹ | L⁻¹ I | vector |
| Mass fraction | x | kg/kg | 1 | |
| (Mass) Density (or volume density) | ρ | kg m⁻³ | M L⁻³ | |
| Mean lifetime | τ | s | T | |
| Molar concentration | C | mol m⁻³ | L⁻³ N | |
| Molar energy | J mol⁻¹ | M L² T⁻² N⁻¹ | ||
| Molar entropy | J K⁻¹ mol⁻¹ | M L² T⁻²Θ⁻¹ N⁻¹ | ||
| Molar heat capacity | c | J K⁻¹ mol⁻¹ | M L² T⁻² Θ⁻¹ N⁻¹ | |
| Target RRB JE CBT 1-Important |
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| Moment of inertia | I | kg m² | M L² | scalar |
| Momentum | p→ | N s | M L T⁻¹ | vector |
| Permeability | μ | H m⁻¹ | M L T⁻² I⁻² | |
| Permittivity | ε | F m⁻¹ | M⁻¹ L⁻³ T⁴ I² | |
| Plane angle | θ | radian (rad) | 1 | |
| Power | P | watt (W) | M L² T⁻³ | scalar |
| Pressure | p | pascal (Pa = kg m⁻¹ s⁻²) | M L⁻¹ T⁻² | scalar |
| Pop | p→ | m s⁻⁶ | L T⁻⁶ | vector |
| (Radioactive) Activity | A | becquerel (Bq = s⁻¹) | T⁻¹ | scalar |
| (Radioactive) Dose | D | gray (Gy = m² s⁻²) | L² T⁻² | |
| Radiance | L | W m⁻² sr⁻¹ | M T⁻³ | |
| Radiant intensity | I | W sr⁻¹ | M L² T⁻³ | scalar |
| Reaction rate | r | mol m⁻³ s⁻¹ | N L⁻³T⁻¹ | scalar |
| Refractive index | n | unitless | 1 | scalar |
| Reluctance | R | H⁻¹ | M⁻¹ L⁻² T² I² | scalar |
| Solid angle | Ω | steradian (sr) | 1 | |
| Speed | v | m s⁻¹ | L T⁻¹ | scalar |
| Specific energy | J kg⁻¹ | L² T⁻² | ||
| Specific heat capacity | c | J kg⁻¹ K⁻¹ | L² T⁻² Θ⁻¹ | |
| Specific volume | v | m⁻³ kg⁻¹ | M⁻¹ L⁻³ | |
| Spin | S | kg m² s⁻¹ | M L² T⁻¹ | |
| Strain | ε | unitless | 1 | |
| Stress | σ | Pa | M L⁻¹ T⁻² | |
| Surface tension | γ | N m⁻¹ or J m⁻² | M T⁻² | |
| Temperature gradient | ∇ T | K m⁻¹ | Θ L⁻¹ | vector |
| Thermal conductivity | k | W m⁻¹ K⁻¹ | M L T⁻³ Θ⁻¹ | |
| Target RRB JE CBT 1-Important |
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| Torque | τ | newton metre (N m) | M L² T⁻² | vector |
| Velocity | v→ | m s⁻¹ | L T⁻¹ | vector |
| Volume | V | m³ | L³ | scalar |
| Volumetric flow | Q | m³ s⁻¹ | L³ T⁻¹ | scalar |
| Wavelength | λ | m | L | |
| Wave number | k | m⁻¹ | L⁻¹ | scalar |
| Wave vector | k→ | m⁻¹ with direction | L⁻¹ | vector |
| Weight | w | newton (N = kg m s⁻²) | M L T⁻² | vector |
| Work | W | joule (J = kg m² s⁻²) | M L² T⁻² | scalar |
| Young’s modulus | E | pascal (Pa = kg m⁻¹ s⁻²) | M L⁻¹ T⁻² | scalar |
| Base quantity | Symbol | SI base unit | Dimension | Scalar/Vector |
| Length | l | metre (m) | L | |
| Target RRB JE CBT 1-Important |
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| Mass | m | kilogram (kg) | M | scalar |
| Time | t | second (s) | T | scalar |
| Electric current | I | ampere (A) | I | |
| Temperature | T | kelvin (K) | Θ | scalar |
| Amount of substance | n | mole (mol) | N | scalar |
| Luminous intensity | L | candela (cd) | J | scalar |
Target RRB JE CBT 1-Important
Target RRB JE CBT First 5 Month Daily Online Test Series
