The dark lines in the solar spectrum are due to
1 Absorption of corresponding wavelengths by the prism used
in he
spectrograph
2 Destructive interference between waves of certain definite
wavelengths
3 Absorption of corresponding wavelengths by the outer
layers of the sun
4 None of these
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(3) Absorption of corresponding wavelengths by the outer
layers of
the sun
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An eminent Harvard professor, who was residing in India for the last two years, recently decided to move back to the USA and return to his alma mater. Name this famous person: 1 Robert Blackwill, American Ambassador to India 2 Robert Strong, Resident Editor of Reader’s Digest in India 3 John West, President of AT & T in India 4 None of the above
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