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q a plano-convex lens of radius 3 m is placed on a flat glass plate and is illuminated by monochromatic light the radius of the 8th dark ring is 36
using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described considering the instance of
q the refractive index of a medium is radic3 compute the angle of refraction if the un-polarised light is incident on it at the polarizing angle of
q why the centre of newtons rings pattern appears darkthe thickness of the air film becomes zero at the point of contact of lens l with glass plate p
what is the antagonism between the sympathetic and the parasympathetic neural actionsin general the actions of the sympathetic and the
q a light of wavelength 58900a falls normally on a thin air film 6 dark fringes are seen between two points calculate the thickness of the film 2mut
q distinguish between interference and diffraction fringesinterference diffraction 1 it is because of the superposition of secondary wavelets from
what are the two divisions of the autonomic nervous systemthe autonomic nervous system is separated into the sympathetic nervous system and the
what are the functional divisions of the nervous systemfunctionally the nervous system can be separated into the somatic nervous system and visceral
how is it explained that a person with the spinal cord sectioned at the cervical level is still able to perform the patellar reflex the arch reflex
what are the respective constituents of the gray matter and of the white matter of the spinal cordthe gray matter or gray substance of the spinal
which are the types of neurons that participate in the spinal arch reflex where are their cell bodies situatedin the arch reflex first a sensory
what is meant by the arch reflexin some situations the movement of the skeletal striated muscles does not depend upon commands of the superior motor
how is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor
which are the brain regions associated with memoryaccording to researchers some of the main regions of the nervous system associated with the memory
what is the spinal cord of which elements is the spinal cord constitutedthe spinal cord is the dorsal neural cord of vertebrates it is the kind of
q state huygens principlehuygens principlea every point on a specified wave front may be considered as a source of secondary wavelets which spread
q on what factors does the amount of optical rotation dependthe amount of optical rotation relay ona thickness of crystalb density of the crystal or
q state the conditions to achieve total internal reflection for entire internal reflection to take placea light should travel from a denser medium to
q state any three uses of ir rays a infrared lamps are utilized in physiotherapyb infrared photographs are utilized in weather forecastingc as
q two slits 03 mm separately are illuminated by light of wavelength 4500 0a the screen is placed at a distance 1m from the slits find the separation
q define specific rotationprecise rotation for a given wavelength of light at a given temperature is defined as the rotation produced by
q define optic axis of a crystal in a double refracting crystal there is a particular direction in which both the rays travel with same velocity this