Q
When we excite some atoms by heat collision or electrical discharge they will________________?
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A
A. Radiate electromagnetic energy with a continuous distribution of wavelength
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B
B. Absorb particular wavelengths when white light is incident on them
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C
C. Radiate electromagnetic energy of discrete characteristic wavelength
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D
D. Emit either invisible or light
Correct Answer:
C. C. Radiate electromagnetic energy of discrete characteristic wavelength
