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Two thin lenses of focal length F1 and F2 are separated by a distance D between them if the combination satisfies the condition for no chrom


Saiprasad 29th May, 2019
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Soni sunny anantkumar Student Expert 12th Jul, 2019

Yes sir, i understand the query related to your question::


Focal length of this chromatic lens is given as follows:

1/f=1/f1 + 1/f2

1/f=( f1+f2)/(f1*f2)

F=F1*F2/(F1+F2)

Still if you find any query related to this ask me in comments . The question you have asked is from 10th science gseb board .

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17th Jul, 2019
Four lenses a, b, c and d of power + 100 - 50 Di, 20 D and 5D which lenses will you use to design a compound microscope for best magnification
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17th Jul, 2019
Two thin lenses of focal length F1 and F2 are separated by a distance D between them the if the combination satisfies the condition for no chromatic and no sperical aberration then F1 is to F2 is
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17th Jul, 2019
Dato lenses of a compound microscope are of a focal length 2 cm and 5 cm if an object is placed at a distance of 2.1 cm from the objective of focal length 2 centimetre the final image formed at the least distance of distinct vision of a normal eye find the distance between the objective and eyepiece
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17th Jul, 2019
The focal length of a lens of dispersive power 0.45 which should be placed in connected with a convex lens of focal length 84 cm and dispersive power 0.21 to make the achromatic combination from the two lenses in centimetres is
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17th Jul, 2019
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17th Jul, 2019
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17th Jul, 2019
18 convex lens of focal length 10 centimetre is placed in contact with a concave lens of same material and same focal length and the focal length of the combination is
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17th Jul, 2019
If you gave me ur watsapp num
I can easily ask my doubts
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17th Jul, 2019
A tuning fork produces a wave of wavelength 110 centimetre in air at zero degree celsius the wavelength at 25 degree Celsius would be
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17th Jul, 2019
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17th Jul, 2019
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17th Jul, 2019
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