What is the wavelength of visible spectrum?
1 1300A-3000A
2 3900A-7600A
3 7800A-8000A
4 8500A-9800A
Potassium nitrate is used in 1 Salt 2 Glass 3 Fertilizer 4 Medicine
is there any instrument to convert mechanical energy into electrical energy
describe the function of muscles
Which scientists gave detailed information about nebula?
Photosynthesis is 1 An exothermic process 2 An endothermic process 3 A neutral process 4 A thermostatic process
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Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott
Which is the first atomic submarine of india?
Which synthetic fiber is known as artificial silk? 1 Cotton 2 Rayon 3 Terylene 4 Nylon
The variety of coal in which the deposit contains recognizable traces of the orginal plant material is 1 Anthracite 2 Lignite 3 Peat 4 Bitumen
Among the various allogropes of carbon 1 Diamond is the hardest, lamp black is the softest 2 Diamond is the hardest, coke is the softest 3 Coke is the hardest, graphite is the softest 4 Diamond is the hardest, graphite is the softest