Answer:

Explanation:
For transitions:
Also,
Where,
h is Plank's constant having value
c is the speed of light having value
So,
So,
Given,
1 m = 10⁻⁹ nm

Answer:
Scientific investigation is a quest to find the answer to a question using the scientific method. In turn, the scientific method is a systematic process that involves using measurable observations to formulate, test or modify a hypothesis.
Explanation:
Answer:
OD. The process of cutting down irrelevant information so only the information that is useful for particular purpose remains
Is it just me or can anyone else not see a graph? (Because I can’t)