Correct Answer: D. buildings

Explanation

ai. The heater, often referred to as the filament, is responsible for emitting electrons when heated.

ii. The high tension source, or high voltage generator, provides the high voltage necessary to accelerate the electrons emitted from the filament towards the anode (target) of the X-ray tube.

iii. Cooling fins are designed to dissipate the heat generated during the operation of the X-ray tube.

bi. The X-ray tube is highly evacuated so that the accelerated electrons can get to their target without losing much of their energy.

ii. The target is a metal with a very high melting point to withstand the high temperature generated when the electrons strike the target.

iii. The cooling fins are placed outside the glass envelope to ensure that the heat generated within the X-ray tube is efficiently transferred to the external environment.

ci. \(^{235}U_{92} + ^1_0n → ^{93}Kr_{36} + ^{141}Ba_{56} + 2^1_0n + Q\)

ii. Energy, Q, is released because the total mass on the left-hand side (reactant) is more than the total mass on the right-hand side (product). So, the energy is released in the form of a reduction in total mass. This missing mass is known as the 'mass defect' and it accounts for the energy released. Also, it's induced fission and nuclear fission is a process in which an unstable nucleus splits into two other lighter nuclei together with several neutrons and is accompanied by the release of energy.

iii. E = ?\(mc^2\) where ?m is the mass defect.

Total mass on the LHS:

235.044 u + 1.009 u = 236.053 u

Total mass on the RHS:

91.898 u + 140.914 u + 2(1.009 u) = 234.83 u

Mass defect, ?m = 236.053 u - 234.83 u = 1.223 u

?m = 1.223 × 1.66 × \(10^{-27}\) = 2.03 × \(10^{-27}\) kg

So,

E = 2.03 × \(10^{-27}\) × (3 × \(10^8)^2\)

= 1.827 × \(10^{-10}\) J

Correct Answer: A. Accrual concept

Correct Answer: A. Selling the shares and stocks of the companies to be privatized

Correct Answer: C. insurable interest

Explanation

Insurable interest is defined as the reasonable concern of a person to obtain insurance for any individual or property against unforeseen events such as death, losses, etc. Insurable interest is an essential requirement for issuing an insurance policy which makes the entity or event legal, valid and protected against intentionally harmful acts. People not subject to financial loss do not have an insurable interest.

Correct Answer: D. distance

Correct Answer: D. excludes depreciation

Explanation

In national income accounting, net national income (NNI) is the gross domestic product plus net receipts of wages, salaries, and property income from abroad, minus the depreciation of fixed capital assets through wear and tear and obsolescence.

NNI = GDP + factor income received from abroad - depreciation of Fixed Capital

Correct Answer: A. Creating genetically modified organisms (GMOs) with desirable traits

Explanation

The primary goal of genetic engineering in agriculture is to create genetically modified organisms (GMOs) with desirable traits. Genetic engineering involves manipulating the genetic material of organisms, such as plants, to introduce specific genes from other organisms.

Correct Answer: A) Bit

Explanation

A bit is the smallest and most basic unit of information storage in computers. It is a binary digit that can either be 0 or 1, representing the two possible states of a switch or transistor in a computer.

A byte, on the other hand, is a unit of information consisting of 8 bits. Bytes are commonly used to represent characters such as letters, numbers, and symbols in computer systems.

Option C, Newton, is a unit of force in physics and has no relation to information storage in computers. Option D, Mega byte, and Option E, Kilo byte, are units of storage that are larger than a byte and are used to represent larger amounts of data.

In summary, a bit is the smallest and basic unit of information storage in computers, and it represents a binary digit that can either be 0 or 1. A byte is a unit of storage consisting of 8 bits, and it is commonly used to represent characters in computer systems. For more information, please see the recommended textbooks.

Explanation

(b) The statement that the longer the channel, the higher the selling price implies that the agent, wholesaler and retailer will want to cover cost, hence put some profit margin on the price. This tends to increase the selling price of the goods.

(c) Reasons why small scale retail business may fail are:

(i) Failure of retail business to keep proper book of account may destroy the fortune of the business.

(ii) When too much credit is allowed, capital will be drastically affected.

(iii) The cost of advertisement is expensive, hence they can not afford.

(iv) Lack of business acumen: Many retail businesses fail because of lack of experience on the part of the owner.

(v) The retail businesses do not provide adequately for insurance and the burden of risk rests on the owner.

(vi) It is difficult to separate business from ownership.

(vii) There is competition from bigger firms.

(viii) There is lack of capital for expansion.

(ix) There is no specialised knowledge on goods dealt in.