📐 CBSE Class 11 Physics: 50 Essential Quantities

SI Units + Dimensional Formulas | Mechanics | Properties of Matter | Thermodynamics | Waves & Oscillations

🔹 Mechanics & Properties of Matter (1–25)

#	Quantity	SI Unit	Dimensions
1	Length	m	[L]
2	Mass	kg	[M]
3	Time	s	[T]
4	Area	m²	[L²]
5	Volume	m³	[L³]
6	Velocity	m/s	[L T⁻¹]
7	Acceleration	m/s²	[L T⁻²]
8	Force	N	[M L T⁻²]
9	Momentum	kg·m/s	[M L T⁻¹]
10	Work	J	[M L² T⁻²]
11	Energy	J	[M L² T⁻²]
12	Power	W	[M L² T⁻³]
13	Pressure	Pa	[M L⁻¹ T⁻²]
14	Stress	Pa	[M L⁻¹ T⁻²]
15	Strain	unitless	[M⁰ L⁰ T⁰]
16	Young's Modulus	Pa	[M L⁻¹ T⁻²]
17	Bulk Modulus	Pa	[M L⁻¹ T⁻²]
18	Shear Modulus	Pa	[M L⁻¹ T⁻²]
19	Poisson's Ratio	unitless	[M⁰ L⁰ T⁰]
20	Surface Tension	N/m	[M T⁻²]
21	Viscosity Coefficient	Pa·s	[M L⁻¹ T⁻¹]
22	Density	kg/m³	[M L⁻³]
23	Relative Density	unitless	[M⁰ L⁰ T⁰]
24	Specific Gravity	unitless	[M⁰ L⁰ T⁰]
25	Temperature	K	[K]

🔹 Thermodynamics, Rotation, Waves (26–50)

#	Quantity	SI Unit	Dimensions
26	Heat	J	[M L² T⁻²]
27	Specific Heat Capacity	J/(kg·K)	[L² T⁻² K⁻¹]
28	Heat Capacity	J/K	[M L² T⁻² K⁻¹]
29	Latent Heat	J/kg	[L² T⁻²]
30	Thermal Conductivity	W/(m·K)	[M L T⁻³ K⁻¹]
31	Coeff. Thermal Expansion	K⁻¹	[K⁻¹]
32	Angular Displacement	rad	[M⁰ L⁰ T⁰]
33	Angular Velocity	rad/s	[T⁻¹]
34	Angular Acceleration	rad/s²	[T⁻²]
35	Moment of Inertia	kg·m²	[M L²]
36	Torque	N·m	[M L² T⁻²]
37	Angular Momentum	kg·m²/s	[M L² T⁻¹]
38	Rotational Kinetic Energy	J	[M L² T⁻²]
39	Gravitational Potential	J/kg	[L² T⁻²]
40	Gravitational Potential Energy	J	[M L² T⁻²]
41	Accel. due to gravity (g)	m/s²	[L T⁻²]
42	Universal Gravitational Constant (G)	N·m²/kg²	[M⁻¹ L³ T⁻²]
43	Escape Velocity	m/s	[L T⁻¹]
44	Orbital Velocity	m/s	[L T⁻¹]
45	Frequency	Hz	[T⁻¹]
46	Time Period	s	[T]
47	Amplitude	m	[L]
48	Wavelength	m	[L]
49	Wave Velocity	m/s	[L T⁻¹]
50	Intensity of Wave	W/m²	[M T⁻³]

⚡ CBSE Class 12 Physics: 50 Essential Quantities

🔹 Electrostatics, Current, Magnetism (1–25)

#	Quantity	SI Unit	Dimensions
1	Electric Charge	C	[A T]
2	Electric Current	A	[A]
3	Electric Potential	V	[M L² T⁻³ A⁻¹]
4	Potential Difference	V	[M L² T⁻³ A⁻¹]
5	Electromotive Force (EMF)	V	[M L² T⁻³ A⁻¹]
6	Electric Field Intensity	N/C	[M L T⁻³ A⁻¹]
7	Electric Dipole Moment	C·m	[L T A]
8	Capacitance	F	[M⁻¹ L⁻² T⁴ A²]
9	Resistance	Ω	[M L² T⁻³ A⁻²]
10	Resistivity	Ω·m	[M L³ T⁻³ A⁻²]
11	Conductivity	S/m	[M⁻¹ L⁻³ T³ A²]
12	Drift Velocity	m/s	[L T⁻¹]
13	Mobility (electrons)	m²/(V·s)	[M⁻¹ T² A]
14	Electric Power	W	[M L² T⁻³]
15	Electric Energy	J	[M L² T⁻²]
16	Internal Resistance	Ω	[M L² T⁻³ A⁻²]
17	Magnetic Field (B)	T	[M T⁻² A⁻¹]
18	Magnetic Flux	Wb	[M L² T⁻² A⁻¹]
19	Magnetic Dipole Moment	A·m²	[L² A]
20	Magnetic Field Intensity (H)	A/m	[L⁻¹ A]
21	Magnetization	A/m	[L⁻¹ A]
22	Magnetic Susceptibility	unitless	[M⁰ L⁰ T⁰]
23	Permeability of free space (μ₀)	H/m	[M L T⁻² A⁻²]
24	Permittivity of free space (ε₀)	F/m	[M⁻¹ L⁻³ T⁴ A²]
25	Induced EMF	V	[M L² T⁻³ A⁻¹]

🔹 EMI, Optics, Modern Physics (26–50)

#	Quantity	SI Unit	Dimensions
26	Self-Inductance	H	[M L² T⁻² A⁻²]
27	Mutual Inductance	H	[M L² T⁻² A⁻²]
28	Reactance	Ω	[M L² T⁻³ A⁻²]
29	Impedance	Ω	[M L² T⁻³ A⁻²]
30	Quality Factor (Q)	unitless	[M⁰ L⁰ T⁰]
31	Power Factor (cos φ)	unitless	[M⁰ L⁰ T⁰]
32	Displacement Current	A	[A]
33	Refractive Index	unitless	[M⁰ L⁰ T⁰]
34	Focal Length	m	[L]
35	Power of Lens	D	[L⁻¹]
36	Magnification	unitless	[M⁰ L⁰ T⁰]
37	Angular Magnification	unitless	[M⁰ L⁰ T⁰]
38	Fringe Width (YDSE)	m	[L]
39	Resolving Power	unitless	[M⁰ L⁰ T⁰]
40	Work Function	eV or J	[M L² T⁻²]
41	Stopping Potential	V	[M L² T⁻³ A⁻¹]
42	de Broglie Wavelength	m	[L]
43	Binding Energy	J or MeV	[M L² T⁻²]
44	Mass Defect	kg	[M]
45	Activity (Radioactivity)	Bq	[T⁻¹]
46	Half-Life	s	[T]
47	Mean Life	s	[T]
48	Energy Band Gap	eV or J	[M L² T⁻²]
49	Transistor Gain (β, α)	unitless	[M⁰ L⁰ T⁰]
50	Mobility (Semiconductors)	m²/(V·s)	[M⁻¹ T² A]