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Diffraction pattern of a single slit of width 0.5 cm is formed by lens of focal length 40 cm. Calculate the distance between the first dark and the next bright fringe from the axis. Wavelength=4890 Å.
How is temporal coherence key of characteristics of laser? Temporal coherence: This coherence is a measure of the correlation among the phases of a light wave at various poi
An impulse of 10 kilogram-meters per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: a) 0.5 meters per second b) 2 met
Coulomb: Coulomb is the fundamental unit of charge. It is explained as the charge required to obtain 9?109 newton of force among two equal charges separated at a distance of one m
1. What do you understand by diffraction of waves? Explain why the diffraction of sound is more easily observable than the diffraction of light? 2. The wavelength of two spectra
when a body is thrown upwards, its velocity becomes zero at the highest point. what will be its acceleration at this point?
Illustrate Bio-Savart law. Describe instantaneous, rms, and maximum values of a current.
What is the hall effect? Derive expression for it.
How does the (i) pole strength and (ii) magnetic moment of each part of a bar magnet change if it is cut into two equivalent pieces transverse to its length?
introduction about earth''s magnetic field
Horizontally Launched Projectiles Suppose a cannonball being launched from cannon atop a extremely high cliff. Imagine as well in which the cannonball does not encounter a impo
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