Which of the Following Is/are Correct Postulates of Bohr's Theory

question 44

Multiple Choice

Which of the following is/are correct postulates of Bohr's theory of the hydrogen atom ?
1) The energy of an electron in an atom is quantized (i.e.only specific energy values are possible) .
2) The principal quantum number (n) ,specifies each unique energy level.
3) An electron transition from a lower energy level to a higher energy level results in an emission of a photon of light.

• A) 1 only
• B) 2 only
• C) 3 only
• D) 1 and 2
• E) 1,2,and 3

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Definitions:

Long Run

An economic phase where all elements of production and expenses can fluctuate, enabling complete adaptation to any alterations.

Normal Profit

The minimum profit necessary for a company to remain competitive in the market, equating to the opportunity cost of capital and resources.

Implicit Costs

Indirect expenses that do not involve a direct cash outlay but represent an opportunity cost, such as using resources for one purpose over another.

Average Product

The output per unit of input, such as the number of goods produced per worker, used to measure productivity efficiency.