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Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). A concave lens of flint glass is commonly combined with a convex lens of crown glass to produce an achromatic doublet lens because of their compensating optical properties, which reduces chromatic aberration (colour defects).
The "Xtra Credit Card" launched by RBL Bank offers cashback on fuel purchases with which company?
How does the PM-MKSSY contribute to economic growth?
In April 2024, which police station of Haryana got the award for best Police station?
According to the 2011 census, what percentage of India's population is engaged in secondary work?
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