From the Lorenz curve, note that

The interval is So, if the fraction of household is , then the Lorenz curve will give the total income as

This is because of the concavity The reason behind this is the poorest of households cannot have total income more than

Sol18:

The Lorenz curve is a graphical representation of income distribution, typically used to show the cumulative share of income received by different segments of the population.

To address the statements made:

"The interval is: Without specific information provided, it's unclear what interval is being referred to. The Lorenz curve typically plots the cumulative share of income on the horizontal axis and the cumulative share of households on the vertical axis.

"So, if the fraction of households is, then the Lorenz curve will give the total income ": Without the fraction of households specified, it is not possible to determine the total income based on the Lorenz curve. The Lorenz curve illustrates the distribution of income, but it does not directly provide information about the total income.

"This is because of the concavity": It's unclear how concavity is being referred to in this context. The shape of the Lorenz curve can provide insights into income inequality, but further clarification is needed to address this statement accurately.

"The reason behind this is the poorest of households cannot have total income more than": Without specific information about the proportion or fraction of households and the corresponding income distribution, it is difficult to provide a definitive explanation for this statement.

Q1 9 : Physics:

(a) sealung cylinder explosion pressure. (b) sealurg oul channols between enge block and cyluider head. (c) Sealung cortant channds (d) If fuses when engevin ovor heaked. Alash point (e) When fud gives off just enough vapour to pooduce a vapourlair mixture that wil ignile on the existence of a flame.

B.Given, In 2 seconds 3 Revolution . 1.5 Rev.

Now, Anguler speed is given by

Sol19:

A. (a) Sealing coolant channels: This refers to the process of ensuring that the coolant channels, which allow the flow of coolant through the engine block and cylinder head, are properly sealed. Effective sealing is important to prevent any leaks or loss of coolant, which could lead to engine overheating or other issues.

(b) Sealing cylinder explosion pressure: This likely refers to the sealing of the combustion chamber in a cylinder to contain the high pressure generated during the combustion process. Proper sealing is crucial to prevent any leakage of combustion gases, which could result in reduced engine performance or even engine failure.

(c) Sealing oil channels between engine block and cylinder head: This refers to the process of sealing the oil passages or channels that connect the engine block and cylinder head. These channels allow the flow of oil for lubrication and cooling purposes. Effective sealing ensures that the oil remains contained within the designated passages and prevents any leaks that could lead to oil loss or engine damage.

(d) Flash point: The flash point of a substance is the lowest temperature at which it emits enough vapor to form an ignitable mixture in the presence of an ignition source (such as a flame). It is an important parameter for determining the flammability of a substance, including fuels or other volatile materials.

(e) Fuse when engine overheated: This sentence seems to be incomplete or contains a typo. However, if we assume that it refers to a fuse blowing or melting due to engine overheating, it could indicate a safety mechanism in place to protect electrical components from damage caused by excessive heat.

B. Angular speed is defined as the rate at which an object rotates or revolves. It is usually measured in radians per second (rad/s). To calculate angular speed, we need to know the angle covered by an object in a given time interval.

In the given information, we know that in 2 seconds, there are 3 revolutions.

1 revolution is equal to 2p radians (360 degrees). Therefore, in 2 seconds, the object covers an angle of 3 * 2p radians.

To calculate the angular speed, we divide the angle covered by the time taken:

Angular speed = (Angle covered) / (Time taken)

Angular speed = (3 * 2p radians) / 2 seconds

Angular speed = 3p radians per second

So, the angular speed is 3p radians per second.