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Light of wavelength 461 nmfalls on two slits spaced 0.330 mm apart. What is the required distancefrom the slit to a screen if the spacing between the first andsecond dark fringes is to be 4.20 mm?
When UV light of wavelength 245nm falls on a metal surface, What is the work function of the metal
A cannon is placed on the ground and angled 36.87 above thehorizon, to shoot a balloon wich is 500 meters away. At what time does the cannon pass under the ballon
A small object is placed to the left of a convex lens and on the optical axis. What is the position of the image formed by the lens
You are in charge of calibrating the radar guns for a local police department. One such device emits microwaves at a frequency of 2.00 GHz. During the trials, these waves are reflected from a car moving directly away from the stationary emitter. You ..
A 500kg car traveling due east at 54.0km/h collides head on with a 3000kg van moving at 18.0km/h. calculate the velocity of the combined mass
fabry-perot fringes are projected on to a screen using a lens of focal length 1.00 m. calculate the order number mc of
carnival ride has a large horizontal steel disc of radius 5m from which cars are suspended by a 6m long chain. the disx is rotated about its axis so that the cars swing out and revolve in a circular path. at operation speed the angle of the chains ..
When responding to sound, the human eardrum vibrates about its equilibrium position. What is the maximum acceleration of the eardrum
What will be the equilibrium temperature while a 238 block of copper at 230 is placed in a 133 aluminium calorimeter cup containing 831 of water at 16.0.
Two lenses that are L = 42 cm apart are used to form an image, as shown in figure. Find the distance from lens and magnification of the image.
Differentiate the formula for the energy density per unit frequency of a blackbody to find the value of hu at which the energy density reaches a maximum. (This will be a function of temperature and is a form of Wien’s Law. You can find the constant b..
a 881 kg car is going 26 ms and the driver has to slam on his brakes to prevent an accident. assume that a total of
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