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Q1. Consider a plane wave of monochromatic green light, 600 nm that is incident normally on two identical narrow slits. The slits are separated by a distance of 30um. An interference pattern is observed on a screen located a distance away from the slits. On the screen location nearest the central maximum where the intensity is zero is found to be 1.5 cm from this central point. What is the distance to the screen?
Q2. A diffraction grating with 330 {rm lines/mm} is 1.00 {rm m} in front of a screen. What is the wavelength of light whose first-order maxima will be 17.0 {rm cm} from the central maximum on the screen?
An electron starts from rest 54.9cm from a fixed point charge with Q = -0.278uC. How fast will the electron be moving when it is very far away
Suppose a star with radius 8.39 multiply.gif 108 m has a peak wavelength of 686 nm in the spectrum of its emitted radiation. What is the surface temperature of the star
A heat engine that is 58.6% efficient does 235.4 kJ of work. How much thermal energy input was required to perform this work
Does the pivot point (i.e., the triangle in the diagram upon which the ruler balances) exert a force on the ruler? Does it exert a nonzero torque about the pivot.
A neutron star is the remnant left after certain supernovae (explosions of giant stars). What is a typical neutron star density
Lightning As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 680m to be the other plate.
Compute the x-coordinate of the center of mass XCM. Suppose that the mass of the rod is small enough to be ignored in your calculation. Your answers must be accurate to within 0.1 cm.
A thin spherical shell of silver has an inner radius of 2.20 10-2 m when the temperature is 17° C. Find the change in the interior volume of the shell
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the object is 1.25m/s.
A light spring with a spring constant of 80.0 N/m rests vertically on a table. A 2g balloon is filled with helium (0°C and 1 atm pressure) to a volume of 5.00 m3 and connected to spring, causing the spring to stretch and expand. How much does the ..
A ball thrown upward returns to the same level after 4s in the air. How long would that ball take to reach the same level
Which of following statements is correct
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