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Q1. A diffraction grating is illuminated with light if wavelength 500nm. It produces the first minimum at 45 degree. Find the number of lines(slits) per mm of diffraction grating.
Q2. A double spit experiment is performed with light of wavelength 600nm. A very wide viewing screen is 2 m behind the grating. What is the distance between the two m=2 bright fringes on the screen? The slit separation is 0.1 mm.
A proton high above the equator approaches the Earth moving straight downward with a speed of 345m/s. Find the acceleration of the proton
What is new angular speed of the merry-go-round
A gold wire 5.72 long and of diameter 0.850 carries a current of 1.19. Find the resistance of this wire
a 20000kg- railroad freight car collides with a stationary caboose car. they couple together and 11 percent of the
The crew of a rocket that is moving away from the earth launches an escape pod, which they measure to be 55 m long. What is the length of the escape pod as determined by an observer on earth
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. how much work is done by the drag force on the rocket during its ascent
Tony pulls his cousin Ann in a sled on an icy surface (no friction) with a force of 60N at an angle of 60 degrees upward from the horizontal
A shop sign weighing 245-N is supported by a uniform 155-N bean. Find out the tension in the guy wire, and the horizontal and vertical forces exerted by the hinge on the bean.
An ambulance traveling at 47 m/s approaches a car heading in the same direction at a speed of 31 m/s. At what frequency does the driver of the car hear the siren
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 6.80 cm from its unstretched position when the system is in equilibrium, determine the mass of the object
An ideal transformer has 255 loops in its primary coil and 125 loops in its secondary coil. what is the current in the secondary loop
a glass sheet is covered by a very thin opaque coating. in the middle of this sheet there is a thin scratch 1.2510-3mm
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