| Quantity Dimension | Name Symbol Symbol | Radiant intensity I e , Ω M⋅L 2 ⋅T − 3 | Spectral intensity I e , Ω , ν M⋅L 2 ⋅T − 2 | I e , Ω , λ M⋅L⋅T − 3 |
|---|
What is the formula of intensity of radiation?
2.1.
The radiation intensity is a far field parameter which can be obtained by simply multiplying the radiation power density by the square distance, i.e., (2.99) (2.100)
P r a d = ∮ Ω U d Ω = ∫ 0 2 π ∫ 0 π U sin
What is the dimension of radiation?
Or,
E = [M] × [L1 T-1]2 = M1 L2 T-2
. Therefore, energy is dimensionally represented as M1 L2 T-2.
What is dimension of intensity?
Intensity (I) =
Power × [Area]
– 1
. Or, I = [M
1
L
2
T
– 3
] × [M
0
L
2
T
0
]
– 1
= [M
1
L
0
T
– 3
] Therefore, the time period is dimensionally represented as [M
1
L
0
T
– 3
].
What are the dimensions of intensity of wave?
[
ML−2T−3
]
What is an example of intensity?
The definition of intensity is the quality of being very strong, concentrated or difficult or the degree to which something is difficult or strong. An example of intensity is
having the ability to run miles on end at a top speed
. An example of intensity is how quickly a treadmill is moving.
What do we mean by intensity of radiation?
The intensity of radiation is defined as
the rate of emitted energy from unit surface area through unit solid angle
. The radiation from a surface has different intensities in different directions.
What is unit area per second?
the radiation energy striking a unit area per second is known as is
intensity of a wave
..
What is the formula of intensity of light?
The energy of a photon is E=hf, so the total intensity for n photons is
I=n⋅hfAΔt
.
What is the dimension of intensity of light?
| luminous intensity | SI unit candela | Other units candlepower Hefnerkerze | In SI base units cd | Dimension J |
|---|
What is the SI unit of intensity?
The SI unit for intensity is
watts per square meter (W/m
2
)
. For example, infrared and visible energy from the Sun impinge on Earth at an intensity of 1300 W/m
2
just above the atmosphere. There are other intensity-related units in use, too. The most common is the decibel.
What is the dimensional formula of capacitor?
The dimensional formula of force and charge is [M
1
L
1
T
– 2
] and [I
1
T
1
] respectively. Therefore, the Capacitance is dimensionally represented as
[M
– 1
L
– 2
T
4
I
2
]
.
What is dimensional formula?
Hint – Dimension formula is
the expression for the unit of a physical quantity in terms of the fundamental quantities
. The fundamental quantities are mass (M), Length (L) and time (T). A dimensional formula is expressed in terms of power of M, L and T. … These will specify the nature of the unit and not its magnitude.
What is the dimensional formula of kinetic energy?
Therefore, Kinetic Energy is dimensionally represented as
[M
1
L
2
T
– 2
]
.
What are the 5 intensity levels?
- Low (or light) is about 40-54% MHR.
- Moderate is 55-69% MHR.
- High (or vigorous) is equal to or greater than 70% MHR.
What is the symbol of intensity?
Luminous intensity typically is represented by the
symbol I
ν
, where the subscript ν denotes a photometric quantity, and its unit is the candela, an SI base unit (1 cd = 1 lumen/steradian, where the steradian is a measure of solid angle). An antiquated term for the candela is candlepower.
