Question
Lens is made up of
–Solution
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).Â
Which of the following property of soil is not influenced by tillage operations?
The gradual increase in the concentration of nutrients in an aging aquatic ecosystem such as a lake is called ____
Which wheat rust is known as a killer disease?
Sodium adsorption ratio is a measure of the amount of sodium (Na) relative to calcium (Ca) and magnesium (Mg) in the water extract. Which of the followi...
Among the mentioned oilseed crops, which one demonstrates the process of "gonophore formation" where the ovary transforms into a peg-like structure to f...
How many Cold Chain projects has the Ministry approved in Uttar Pradesh under the Pradhan Mantri Kisan Sampada Yojana (PMKSY)?
e-National Agriculture Market (e-NAM) was launched in the year___Â
Pradhan Mantri Fasal Beema Yojana started in which year?
“Puffiness” is a physiological disorder of which crop?
The let-down of milk in cow is due to release of which of the following hormone?Â