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When a metal is illuminated with radiation with a wavelength of 152 nm, photoelectrons are ejected with a velocity of 7.9 x 105 m/s.
What is the work function, in eV, of the metal?
An oil film (n = 1.45) on the surface of a puddle of water on the street is 118 nm thick. What frequency of light would be reflected? 2d= (m+1/2)λ/n oil
Explain about the scanning process and image formation of scanning electron microscope. Scanning process and image formation of scanning electron microscope In a typical sca
Some sample
Give reasons for the following (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival.
what is meant by cryotron?
Presbyopia: The accommodation power of a person is lost by which the suffers a long sightedness. It is known as Presbyopia or lack of accommodation.
Define the procedure to determine flaw by transducer. Procedure to find flaw: Cross section of typical contact transducer Ultrasonic flaw detection is fundamentally
For silicon the forbidden gap is (A) 1.1ev. (B) 0.25ev. (C) 0.5ev. (D) 0.7ev. Ans: For silicon the forbidden gap is 1.1ev.
1. A child pulls a toy car weighing 0.20 kg across a smooth floor by means of a string attached to it. If the string makes an angle of 60° to the floor and the child pulls with a f
Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two
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