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

1 Answers  

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which among the followings is found chlorophyll ?

2 Answers  

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Which of the following is not a compound? 1 Silica 2 Red lead 3 Slaked lime 4 Black lead

1 Answers  

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is there any device to convert to mechanical energy into electrical energy

3 Answers  

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The age of most ancient geological formations is estimated by 1 Potassium-argon method 2 Ra-Si method 3 C14method 4 Uranium-lead method

2 Answers  

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Which of the following is used as a moderation in nuclear reactor? 1 Ordinary water 2 Radium 3 Thorium 4 Graphite

2 Answers  

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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,

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iS ELEMENT IRON RADIOACTIVE AND WHY?

1 Answers  

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Which of the following gases is not known as green house gas? 1 Carbon dioxide 2 Methane 3 Nitruous oxide 4 Hydrogen

4 Answers   ACIO, Infosys, ptet,

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The correct sequence of various regions I absorption spectrum is 1 Visible, ultraviolet, microwave, infra red 2 Infra red, gamma rays, ultraviolet, microwave 3 Ultra violet, visible, infra red, microwave 4 None of these

1 Answers   CPSE,

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The percentage of carbon is the least in 1 Grey cast iron 2 Wrought iron 3 White cast iron 4 Steel

4 Answers  

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List and explain two instances of Correlation Science with Life Situation

0 Answers   Mahatma Gandhi University,

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