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Q1. Light from a He-Ne laser ( lambda = 632.8 nm ) strikes a pair of slits at normal incidence, forming a double-slit interference pattern on a screen located 1.30 m from the slits. The interference pattern can be observed on the screen. What is the slit separation?
Q2. A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 16 mm from the tooth, what is the magnification of an image?
Q3. A tuning fork vibrating at 594 Hz falls from rest and accelerates at 9.8 m/s
How far below the point of release is the tuning fork when waves of frequency 571 Hz reach the release point? The speed of sound in air is 337 m/s.
Explain answer in units of m.
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A particle of charge +1.5 nC is placed at a corner of a Gaussian cube with sides 12.0cm. What is an electric flux through the cube.
What was an initial speed of the ball
Find the angle with respect to the ground
An aquarium contains a 5-cm layer of water (n = 1.333) floating on top of carbon tetrachloride (n = 1.461). If an angle of incidence into water from the carbon tetrachloride is 20, what is the angle of refraction into the air.
What is the potential difference
A 100-kg halfback running north with a speed of 12 m/s is tackled by a 110-kg opponent running south with a speed of 4.0 m/s. If collision is completely inelastic and head-on, compute the speed of the players just after the tackle.
Find out the speed of the satellite
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