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
Answer / guest
(3) Absorption of corresponding wavelengths by the outer
layers of the sun
| Is This Answer Correct ? | 18 Yes | 2 No |
How does common salt help in separating soap from the solution after saponification? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 None of these
what are advantages & disadvantages of science?
What are the points to be born in mind while eating to avoid disease?
HELPS IN PROPAGATING RADIO SIGNALS
In modern science, what is 'fourth dimension'?
Label the following types of erosion in order by their ability to transport materials. Wind erosion, water erosion, glacial erosion, plant/animal erosion.
Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott
Liquefied Petroleum Gas consists of mainly 1 Methane, ethane and hexane 2 Ethane, hexane and noname 3 Methane, butane and propane 4 Methane, hexane and nonane
In which year the solar observatory in kodikanal founded?
Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite
The major ingredient of leather is 1 Carbohydrate 2 Collagen 3 Polymer 4 Nucleic acid
Which is india’s largest nuclear research reactor?