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The phenomenon of diffraction was first discovered by Girmaldi. Its experimental study was completed by Newton's and young. The theoretical explanation was first provided by Fresnel's.
-The phenomenon of bending of light around the corners of an obstacle/aperture of the size of the wave length of light is known as diffraction.
A painter uses a 25.8-cm long screwdriver to pry the lid off of a can of paint. If a force of 85 N is applied to move the screwdriver 60.0° from the perpendicular, calculate t
Q. What would occur if a disk one light second in circumference were to spin at 60 RPM? Answer:- 60 revolutions for each minute is one revolution per second. 1 light se
A toy train moves in a circle of 8 meters radius with a speed of 4 meters per second. What is the magnitude of the acceleration of the train? Ans: The magnitude of the acce
What is electric flux? Write its S.I. units. Using Gauss's theorem, assume an expression for the electric field at a point because of a uniformly charged infinite plane sheet.
What does it mean when a coulomb of charge has a certain number of joules?
Describe the term amorphous solids. Amorphous solids: Solids along with particles not arranged in an ordinary fashion. They have merely short range order or still the partic
explain briefly voltaic cell
What is the ratio of mass of an electron to the mass of a proton: (1) 1 : 2 (2) 1 : 1 (3) 1 : 1837 (4) 1 : 3 Ans: 1: 1837
Imagine a car tire that contains 5.1 moles of air when at a gauge pressure of 2.1×105N/m2 (the pressure above atmospheric pressure) and a temperature of 27 °C. The temperature incr
Q. An object of size 3.0 cm is placed 14cm in front of a concave lens of focal length 21 cm. Describe the image produced by the lens. What happens if the object is moved further aw
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