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If 550-nm light is incident normally on a diffraction grating and exactly 6 lines are produced, the ruling separation must be:
Dire Need
A situation expressing extreme urgency or pressing necessity, often relating to basic survival requirements.
First Aid
Immediate and temporary care given to an individual who is injured or suddenly becomes ill, before professional medical help is available.
Helping Others
Engaging in actions or behaviors that provide support, assistance, or benefit to someone other than oneself.
Altruistic Behavior
Altruistic Behavior is when individuals act to promote someone else's welfare, even at a cost or risk to themselves.
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