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A plane diffraction grating of width 2.5cm has 1500 rulings. Monochromatic light of wave length 5893A0 is incident normally on it. Determine the angle at which second order principal maximum occur.
The radioactive isotope D decays according to the sequence If the mass number and atomic number of D2 are 176 and 71 respectively, what is (i) the mass number (ii) atomic
A charge q1 is 9.00um is at the origin, and a charge q2 is -4.00um is on the x- axis 0.30m from the origin. find the electric field strength at point P, which is on the y - axis 0.
Q. Orbital Velocity for Low Earth Orbit Neglecting air friction an object will sustain a low altitude orbit when the centrifugal force due to its motion in a circular orbit is
a mild steel wire of length 1mand cross sectional area 0./10^2 cm^2 is stretched. within the elastic limit horizontally between two pillars. a mass of 100g is suspended from the mi
Q. On what factors does the amount of optical rotation depend? The amount of optical rotation relay on (a) Thickness of crystal (b) Density of the crystal or else concent
Muturi is rearranging some furniture. He pushes the dresser with a force of 143 N,and there is opposing frictional force of 112 N. What is the net force ?
concave grating and rowland''s mounting theory
What is the difference between a lens and a mirror? A mirror is a reflective surface. Light passes by the glass and hits the silver backing, reflecting off of it. (The angle of
who invented this?
In two-dimension motion a body go in a plane. e.g. a particle rolling in a circle, a cricket ball caught by a fielder. In the first case the body can go round with a fix velocity o
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