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Q1. A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.615 for red light of wavelength 680 nm. If a beam containing these two colours is incident at an angle of 30.0° on a piece of this glass, what is the angle between the two beams inside the glass?
Q2. A microscope with an eyepiece lens of focal length 1.90 cm and an objective lens of focal length 1.15 cm is used to examine a section of the brain of a sacrificed rat. The distance between the lenses of the instrument is 24.0 cm and final image is virtual and at infinity. How far from the objective lens is the object? In cm
Guess scale factor of the Universe
One cubic meter of water flowing over Niagara Falls in New York drops 98.1 meters. how much heat energy would the water have
Calculate the velocity of a 50.0g steel ball shot from a slingshot with a 120N/m spring constant when pulled back 35cm and released
The position of an air-track cart that is oscillating on a spring is given by the equation x = 12.4 cos[(6.35 s-1)t] . At what value of t after t= 0.00s in the cart first located at x = 8.47 cm ?
A paperweight consists of a 9.00-cm thick plastic cube. Within the plastic a thin sheet of paper is embedded, what is the index of refraction of the plastic
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.40 cm, and a -2.30 µC charge is located at y = -1.60 cm. Find the total electric potential at the origin
What is coefficient of kinetic friction
Three moles of a monatomic ideal gas are heated at a constant volume of 1.12 m3. The amount of heat added is 5.89 x 103 J. Determine the change in pressure
One long wire lies along an x axis and carries a current of 42 A in the positive x direction, What is the magnitude of the resulting magnetic field at the point (0, 2.0 m, 0)
q1. an object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave spherical curvature of 22.0 cm.a.
A 12-V battery causes a current of 0.85A through a resistor. How many joules of energy does the battery lose in a minute
A mass M = 25.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, what is the acceleration a of the van
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