What is work function formula?

In equation form, this is given by KEe = hf − BE, where KEe is the maximum kinetic energy of the ejected electron, hf is the photon’s energy, and BE is the binding energy of the electron to the particular material. (BE is sometimes called the work function of the material.)

What is the dimensional formula of force and work?

Dimensional formula for force is [M1L1T – 2] and dimensional formula for distance is [M0L1T0]. Thus, dimensional formula for work is [M1L2T – 2]. SI unit of work is kg m2 s−2. Dimensional formula for force is [M1L1T – 2] and dimensional formula for time is [M0L0T1].

What is dimension and its 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 dimension formula of position?

The dimension of the position space is n (also denoted dim(R) = n). The coordinates of the vector r with respect to the basis vectors ei are xi. The vector of coordinates forms the coordinate vector or n-tuple (x1, x2, …, xn).

What is called work function?

From Wikipedia, the free encyclopedia. In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface.

What is work function Class 12?

The minimum energy required for an electron to just escape from the metal surface is called “work function”. If this energy is sufficient, the electrons are ejected out of the metal instantaneously. The minimum energy needed for the electron to come out of the metal surface is called work function.

What are the units of work?

As you might expect from this equation, units of work are equal to a force unit times a distance unit. In the metric system of units, where force is measured in newtons (abbreviated N), work is measured in newton-meters (N-m). For reference, a newton is roughly equal to the force exerted on your hand by a baseball.

What is the dimension of work and energy?

Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J), the same unit as for energy….Work (physics)

Work
In SI base units	1 kg⋅m2⋅s−2
Derivations from other quantities	W = F ⋅ s W = τ θ
Dimension	M L2 T−2

What is dimensional formula give an example?

A formula that represents a physical quantity in terms of fundamental units along with appropriate dimensions within parenthesis or square bracket is known as a dimensional formula. e.g., : Dimensional formula for force is (M1L1T-2) .

What is the dimension of force?

Units and dimensions

Quantity	Dimension	Unit
acceleration	[L T-2]	meter per second squared
density	[M L-3]	kilogram per cubic meter
force	[M L T-2]	newton
pressure	[M L-1 T-2]	pascal

What are the dimensional formula of work and displacement respectively *?

Dimensional Formula:

Physical quantity	Unit	Dimensional formula
Work (force × displacement)	J	ML 2T –2
Decay constant	s-1	M0L0T-1
Potential energy	J	M1L2T-2
Kinetic energy	J	M1L2T-2

What is the dimension of work function Class 12?

Or, W = [M1 L1 T-2] × [M0 L1 T0] = [M1 L2 T-2]. Therefore, work is dimensionally represented as [M1 L2 T-2].

How do you calculate the dimension of work?

Work (W) = Force × Displacement . . . . . (1) ∴ The dimensional formula of Force = M 1 L 1 T -2 . . . . (2) Or, W = [M 1 L 1 T -2] × [M 0 L 1 T 0 ] = [M 1 L 2 T -2 ]. Therefore, work is dimensionally represented as [M1 L2 T-2].

What is the dimensional formula for work force?

Dimensional Formula of Work. The dimensional formula of Work is given by, M 1 L-2 T-2. Where, M = Mass; L = Length; T = Time; Derivation. Work (W) = Force × Displacement . . . . . (1) Since, Force = Mass × acceleration = M × [L T-2] ∴ The dimensional formula of Force = M 1 L 1 T-2. . . . (2) On substituting equation (2) in equation (1) we get,

What is the work function in physics?

In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e. energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface.

What are the dimensions of the work function of an electron?

Since work function is defined as the minimum energy required to remove the electron from an atom. Therefore it is given by Where h = 6.625 × 10 − 34 J s is a plank’s constant which is having the unit joules-second. Therefore its dimensions are [ M L 2 T − 1]