The Element Sodium Emits Two Wavelengths of Yellow Light That

question 42

Multiple Choice

The element sodium emits two wavelengths of yellow light that are very close together.The wavelengths are 589.00 nm and 589.59 nm.How many narrow slits are required for a diffraction grating to be able to resolve the first-order bright fringes created by them?

• A)1
• B)589
• C)590
• D)1000

Identify the principle of object permanence and its development stage.

Comprehend the cognitive processes associated with the sensorimotor and formal operational stages.

Grasp Piaget's contributions to cognitive development understanding.

Understand Erikson's psychosocial stages and the crises associated with each stage.

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