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If magnetic force does not work on charged particles, how can it have any effect on particle motion?
When a charged particle moves on uniform magnetic field (B), it experience a force F as F= Bqv sinΘ, where q is charge particle, v be its velocity and Θ be is angle between B and v. This force is acting toward the motion of the circle or motion is circular. The direction of force F and distance coveRead more
When a charged particle moves on uniform magnetic field (B), it experience a force F as F= Bqv sinΘ, where q is charge particle, v be its velocity and Θ be is angle between B and v. This force is acting toward the motion of the circle or motion is circular. The direction of force F and distance covered s are always perpendicular to each other such that, work done W = FS cos90 = 0. so, the magnetic force does no work done but moves the particle in circular motion.
See lessAn earthworm is hermaphrodite but self fertilization does not takes place ,why?
an earthworm is hermophodite but there is no self fertilization because of proandus ( male gamete and female gamete ).
an earthworm is hermophodite but there is no self fertilization because of proandus ( male gamete and female gamete ).
See lessAnimals are classified into hierarchical groups, in which one of the following, the target number of species is found?
Option A is the correct answer
Option A is the correct answer
See lessHierarchy of categories of Carolus Linnaeus had categories except
Option D is the correct answer !!! Linnaeus proposed that there were three broad groups, called kingdoms. These kingdoms were animals, plants, and minerals. He divided each of these kingdoms into classes. Classes were divided into orders. These were further divided into genera (genus is singular) anRead more
Option D is the correct answer !!!
See lessLinnaeus proposed that there were three broad groups, called kingdoms. These kingdoms were animals, plants, and minerals. He divided each of these kingdoms into classes. Classes were divided into orders. These were further divided into genera (genus is singular) and then species.
The descending arrangement of categories is known as
Option C is the correct answer !!! Hierarcy is the process of arranging taxonomic categories in descending order where species is lowest and kingdom is at top.
Option C is the correct answer !!!
See lessHierarcy is the process of arranging taxonomic categories in descending order where species is lowest and kingdom is at top.
What of the following is true about the species which have became extinct?
Option A is the correct answer !!!
Option A is the correct answer !!!
See lessA homonym is
Option C is the correct answer !!! identical name of two different taxa is Homonym.
Option C is the correct answer !!!
See lessidentical name of two different taxa is Homonym.
Identify from the following the only category that has a real existence.
Option D is the correct answer !!! A species is defined as the largest group of organisms sharing similar characteristics, capable of interbreeding and produce fertile offspring.
Option D is the correct answer !!!
See lessA species is defined as the largest group of organisms sharing similar characteristics, capable of interbreeding and produce fertile offspring.
Which is different in different groups?
Option B is the correct answer !!! A taxon is the category of a group of organisms that forms a unit. Different groups have different taxon.
Option B is the correct answer !!!
A taxon is the category of a group of organisms that forms a unit. Different groups have different taxon.
See lessSelect the incorrect statements:(a) Lower the taxon, more are the characteristics shared by members.(b) Order is an assemblage of genera which have a few similar characters.(c) Cat and dog belong to same family of felidae.(d) Binomial nomenclature was introduced by Carolus Linnaeus.
Option A is the correct answer !!!
Option A is the correct answer !!!
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