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Light at wavelength 589 nm from a sodium lamp is incident perpendicularly on a grating with 40900 rulings over width 82 mm. What are the first-order
(a) dispersion D and
(b) resolving power R, the second-order
(c) D and
(d) R, and the third-order
(e) D and (f) R?
A platinum resistance thermometer has resistances of 190.0 when placed in a 0°C ice bath and 234.8 when immersed in a crucible containing a melting substance. What is the melting point of this substance?
A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 4.0 m due east. For the second putt, the ball travels 3.1 m at an angle 20° north of east. The third putt is 0.50 m due north. What disp..
The measured conductivity of Cu at Room Temperature is 5.88 x 107/ohm.m and the Fermi energy for Cu is 7.03 eV, Find the mean free path( mfp) of electrons in copper
Alpha-particle scattering experiments using uranium (Z = 92) as the target material show that the alpha-particles experience a pure Coulomb repulsion, Estimate the radius of the uranium nucleus
Find the average magnitude of the induced emf if the change. The magnitude of the charge on a parallel plate capacitor is 4uC and the potential difference between the plates is 80V. What is the capacitance of this capacitor.
A student from Sidney, Australia compares the distance he obtained from the 1-st spark mark to the 20-th spark mark, What difference in the results was found
You are 1.7m m tall and stand 3.5m m from a plane mirror that extends vertically upward from the floor. What is the minimum height the mirror must have for you to be able to see the top of the table in the mirror
When the electric power was turned off, the electric motor originally running at 1800 rpm comes to rest in 15.0 s. Find out the angular acceleration, the angular velocity at the end of 5.0 s, and the total angle turned through in 15.0 s.
An RLC series circuit has a 202 ? resistor and a 25.0 mH inductor. At 8220 Hz, the phase angle is 45.0°. Find the minimum possible capacitance of the circuit
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
Sources A and B emit long-range radio waves of wavelength 440 m, What is the magnitude of the phase difference at the detector
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