Explanation

• Hydraulics is a branch of science and engineering that focuses on the use of liquids to transmit power, generate motion, and control systems.
• It is widely used in various industries, including construction, manufacturing, and aerospace.

Explanation

• Pascal's Principle is the fundamental principle behind the operation of hydraulic systems.
• They are used in a wide range of applications, including construction equipment, brakes, lifts, and presses.
• It allows for the multiplication of force and motion, making it a crucial concept in engineering and technology.

Explanation

• Force is a vector quantity.
• It means it has both magnitude (amount of force) and direction (the way it is applied).

Explanation

 Both Hay’s bridge and Maxwell’s inductance capacitance bridges are used to measure the inductance.

Hay’s bridge is used for the measurement of inductance of high Q coils

whereas Maxwell’s inductance capacitance bridge is used for the measurement of inductance of low Q coils.

Explanation

 A DIAC is a full-wave or bi-directional semiconductor switch that can be turned on in both forward and reverse polarities.

Explanation

The minimum angle of resolution (θ) for a lens of diameter (D) and light of wavelength (λ) passing through it can be expressed as:

𝜃= 1.22 𝜆 / 𝐷​

Where:

𝜆 is the wavelength of light

𝐷 is the diameter of the lens

The resolution power (R) is defined as the reciprocal of the angle of resolution:

𝑅 = 1 / 𝜃

Substituting the expression for 𝜃 into the equation for resolution power (R):

𝑅 = 1 / 1.22  𝜆 / 𝐷

Simplifying this expression:

𝑅 = 𝐷 / 1.22 𝜆 

So, the formula for the relation between resolution power (R) and the diameter of the lens (D) is:

𝑅 = 𝐷 / 1.22 𝜆

Explanation

Geothermal energy is the heat produced deep in Earth's core.

it is a clean, renewable resource that can be harnessed for use as heat and electricity

Explanation

Relative permittivity is the ratio of a medium's is defined by:

1. The ratio of the electric field in vacuum to the electric field in the medium

and

2. The ratio of the capacitance with the medium to the capacitance with air

Explanation

The molecules of a gas are in constant, random, and chaotic motion.

They move in all possible directions in three dimensions. 

Gas molecules:

• Are widely separated
• Have low attractive forces
• Are free to move in any direction
• Collide with one another

Explanation

The becquerel (symbol: Bq) is the SI unit of radioactivity

It is defined as one nuclear disintegration per second 1

it officially replaced the curie (Ci), the unit in the superseded cgs system, in 1975.