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The refractive index of many materials (such as glass) varies with the wavelength or colour of the light used, a phenomenon known as dispersion. This causes light of different colours to be refracted differently and to leave the prism at different angles, creating an effect similar to a rainbow. In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency, or alternatively when the group velocity depends on the frequency.
The weeds whose seed is difficult to separate from crop seed after contamination is called ___
Which one of the following breeding approaches can be used for transfer of desirable successive gene in otherwise good variety?
Which of the following is the largest compartment in a ruminant animal?
What is the seed rate of hybrid cotton with a spacing of 120 × 60 cm?
Gundhi bug, a pest of rice attacks the plant in which stage?
Which of the following species of Rhizobium bacteria is responsible for nodule formation in Soyabean?
ICAR- National Bureau of Animal Genetic Resources is situated at ___
The Cosmopolite channels are the one which originate outside a particular social system, Examples of this channel includes
Cryoprotectant used in fish preservation is
A method of asexual propagation in which a stem is made to produce roots while still attached to the parent plant is called
