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Q1. Suppose that in franck-hertz experiment, electron of energy 12.5 ev is used to excite hydrogen atoms. What is the maximum amount of energy the incident electron can lose in elastically in this collision? What is left over energy of the electron?
Q2. Juan's parents, aunts and uncles smoke cigarettes, however they advise him not to smoke. Julia's parents and friends don't smoke, although they say nothing to discourage her from doing so. According to the observational learning theory, will Juan or Julia be more likely to start smoking? Give details in answer.
Q3. A crude, symmetric handheld microscope consists of two converging 20 D lenses fastened in the ends of a tube 27 cm long. What is the "tube length" (distance between the foci of the two lenses) of the microscope?
Two rectangular pieces of plane glass are laid one upon the other on a table. A thin strip of paper is placed between them at one edge, Find the angle of the wedge
A particle known as a pion lives for a short time before breaking apart into other particles. what is the lifetime according to a hypothetical person who is riding along with the pion
Two identical speakers are driven by the same oscillator @ 200Hz. They are located on a vertical pole & 4.00 m apart. A man walks straight towards the lower speaker perpendicular to the pole.
A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two parallel rubber bands. With what speed does the stone leave the slingshot
An astronomical telescope has an angular magnification of -144, What is the focal length of the eyepiece
A car owner forgets to turn off the headlights of his car while it is parked in his garage. how long will it take the battery to completely discharge
You drop 500 g of ice at -35oC into a bucket of water (1200 g) at 45oC. Find the final temperature of the system
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg, What is the total kinetic energy of the two blocks after the collision
Compute the index of refraction of the gas
A person of mass 79kg stands at the center of a rotating merry-go-round platform of radius 3.3m and moment of inertia 830kg*m^2. Calculate the angular velocity when the person reaches the edge
Find the drift velocity of conduction electrons in a gold wire of diameter 1.03 mm when a current of 0.221 A flows in it. The density of conduction electrons in gold is 5.90 X 10^28 m-3
A capacitor consists of square conducting plates 28cm on a side and 5.5mm apart, carrying charges ± 1.8?C, Find the stored energy
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