Gurushala

Answer 1313

What is the efficiency of incandescent lamps?

4 year ago

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Shweta Jain

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In which state is Indravati National Park located?

4 year ago

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Rahila Ahmed

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Which of the following is not a green house gas found in the Earth's atmosphere?

[A] carbon dioxide

[B] Methane

[C] water vapor

[D] Nitrogen oxide

4 year ago

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Rahila Ahmed

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Which fertilizer has the ability to lower the pH value of the soil?

4 year ago

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Rahila Ahmed

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Monochromatic light of frequency 5 x 10⁴ Hz travelling in vacuum enters a medium of refractive index 1.5. Its wavelength in the medium is :
A) 5000 A0
B) 4000 A0
C) 5500 A0
D) 6000 A0

4 year ago

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Nikku

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At what distance from a screen will a 27 Cd lamp provide the same illumination as a 75 Cd lamp 15 m from the screen ?
A) 9 m
B) 6 m
C) 3 m
D) 1 m

4 year ago

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Nikku

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