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 |
Carbon tetrachloride fire extinguisher should not be used in closed rooms, because it produces a poisonous gas called 1 Carbon monoxide 2 Phosphine 3 Phosgene 4 None of these
can any body tell diffirence between validation and qualification
2 Answers Ind Swift Laboratories,
Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
2 Answers WBCS West Bengal Civil Service,
What is the Physiology ?
Terls was dedicated to u.n as an international institution?
What is one light second?
A team of u.n scientists visited thumba?
what are disadvantages of interrupt and exception?
which croup is sown on the largest area in india? 2)holandric genes occur exclusiely on? 3)
Difference between Respiration and Photosynthesis ?
Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones