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View the diffraction pattern of a mercury lamp which emits a bluish color. The lamp will be used to calibrate the grating, i.e., to find the distance between adjacent slits, d and thus the number of lines per cm (1/d where d is in cm). Mercury emits three bright lines, a bluish-green line at 546 nm and two yellow lines at 577 nm and 579 nm. The two yellow lines are very close to each other and for the purpose of this exercise, they are treated as one line at 578 nm.
Measure the angles between the central maximum (blue line at 180A?°) and the bluish-green and yellow lines. (It does not matter whether you use the lines on the left or right of the central maximum for this exercise. However, for the lab, you will be asked to measure the angles on both sides since the spectrometer may not be properly aligned.) Then use the expression dsinθ=mλ to calculate the separation between adjacent slits, d. Do the same thing for the yellow line and then calculate the average of the two values and enter the value below.
How long a pipe is needed to make a tuba whose lowest note is low C (frequency 129.9 Hz)? Assume that a tuba is a long straight pipe open at both ends
A supertrain of proper length 205 m travels at a speed of 0.87c as it passes through a tunnel having proper length 74 m. How much longer is the tunnel
A luge and its rider, with a total mass of 104 kg, emerges from a downhill track onto a horizontal straight track with the initial speed of 53 m/s. suppose they stop with the constant deceleration of 2.30 m/s2.
A transverse sinusoidal wave on a string has a period T = 36.0 ms and travels in the negative x direction with a speed of 30.0 m/s. At t = 0, What is the maximum transverse speed of the string
Heather in her Corvette accelerates at the rate of (3.10i - 2.00j)m/s2, while Jill in her Jaguar accelerates at (1.00i + 3.10j) m/s2. Calculate how far apart are Heather and Jill
How much energy is necessary to place three charges, each of 3.0 micro Coulomb's, at the corners of an equilateral triangle of side 2 cm.
An 271 N object is moving to right when forces act on it Two forces act in + y direction (up) 32 N and 17 N One force acts in down , -y, direction 20N Two forces act to right , +x, direction 18 N and 26N, Determine the net force on the particle
A force of magnitude 100N is directed N, and a second force of 200N 30 degrees East of North. Find the magnitude and direction of the third force that when added to the first two force gives a resultant where magnitude is zero.
A pendulum of length 1.00 m swings in a vertical plane. Whenthe pendulum is in the two horizontal positions Θ =90 andΘ =270, its speed is 5.00 m/s. find the magnitude and direction of the total acceleration
A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 20 cm. what will the image position be
Use Maxwell-Ampère's equation to calculate the maximum strength of the B-field on the perimeter of the plates; when is the B-field maximum
How is the north pole of a compass needle defined? Based on this, do the geographic and magnetic North poles on Earth coincide? You will be measuring the local magnetic field (magnitude and direction) in the lab room. Do you expect this field to po..
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