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HC VERMA-PHOTOMETRY-Exercises
- A source emits 45 joules of energy in 15 s. What is the radiant flux o...
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- A photographic plate records sufficient intense lines when it is expos...
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- Using figure (22.1), find the relative luminosity of wavelength (a) 48...
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- The relative luminosity of wavelength 600 nm is 0.6. Find the radiant ...
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- The luminous flux of a monochromatic source of 1 W is 450 lumen watt^-...
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- A source emits light of wavelengths 555 nm and 600 nm. The radiant flu...
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- A light source emits monochromatic light of wavelength 555 nm. The sou...
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- A source emits 31.4 W of radiant flux distributed uniformly in all dir...
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- A point source emitting 628 lumen of luminous flux uniformly in all di...
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- The illuminance of a small -2 area changes from 900 lumen m^-2 to 400 ...
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- A point source emitting light uniformly in all directions is placed 60...
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- Light from a point source lhlls on a small area placed perpendicular t...
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- A student is studying a book placed near the edge of a circular table ...
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- Figure shows a small diffused plane source S placed over a horizontal ...
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- An electric lamp and a candle produce equal illuminance at a photomete...
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- Two light sources of intensities 8 cd and 12 cd are placed on the same...
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