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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.
can electrons from an electron gun produce electricity
What do you mean by Moseley's law? Explain briefly its importance. Explain the origin of X-ray spectra. Describe continuous and characteristic x-ray spectrum.
What is diffraction of light? Illustrate a graph showing the variation of intensity with angle in a single slit diffraction experiment. Write single feature which distinguishes the
A plane polarized monochromatic light of wave length 5893Å is incident perpendicularly on a quarter wave plate to produce elliptically polarized light. If the refrac
Q. A person with a normal near point (25cm) using a compound microscope with objective of focal length 8.0mmandan eye piece of focal length 2.5cm can bring an object placed at 9.0m
A ring forming a magnetic circuit is made from two materials; one part is mild steel of mean length 25cm and cross-sectional area 4cm 2 , and the remainder is cast iron of mea
Anode rays were discovered by: (1)Goldstein (b)J. Stoney (3)Rutherford (4)J.J. Thomson Ans: (1)Goldstein
A player hits a ball at some angle the ball goes high up in the space the player runs and catches the ball before it hits the ground which of the two has greater displacement?
A sphere of radius R touches two adjacent sides of a room.It also touches an inclined plane at a height of R/5 from the floor.the inclined plane moves towards the sphere at the spe
A 50 newton light fixture is supported by two guy wires as shown. Determine the tension in each wire
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