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Problem: A very thin oil film (n = 1.25) floats on water (n = 1.33). What is the thinnest film that produces a strong reflection for green light with a wavelength of 500 nm?
Will only reward points with complete work show your working, I don't understand how to solve problems with producing strong reflection.
A 160 g ball on a 70.70 cm long string is swung in a vertical circle about a point 184 cm above the floor. The string all of a sudden breaks when it is parallel to the ground and the ball is moving upward. The ball reaches a height 543 cm above th..
A spaceship is going to park between two stationary planets C and D that are separated by 20 meter. Determine how far from planet C should the spaceship be
How much energy is necessary to bring the system back
The allowed energies of a simple atom are 0.00 eV, 4.25eV , and 6.64eV. What wavelengths appear in the atom's emission spectrum
Suppose that 40 grams of a radioactive isotope is discovered to have 1.25 grams remaining after 24 hours. What is the half-life of this isotope
A platinum resistance thermometer has a resistance of 100ohm at 0 deg and the value of alpha is 0.00385. Calculate the temperature
A 31.5 cm focal length converging lens is 20.0 cm behind a diverging lens. Parallel light strikes the diverging lens. What is the focal length of the diverging lens
An electron (charge 1.60×1019 C, mass 9.11×1031 kg) is in a uniform electric field of strength 543 N/C in the positive direction. What is the acceleration of the electron
The power P of an Electric circuit varies jointly with resistance , R and with the square of the current, I. find the power if the current is 2.00 A and the resistance is 2.00 ohms
A large block 19.0 cm wide, 20.0 cm long, and 24.00 cm high of mass 4.55 kg. This block is passing through air (density ?air = 1.43 kg/m3). Calculate the terminal velocity of the block
Standing waves are set up on two strings fixed at each end, as shown in the drawing. find the beat frequency produced by the two standing waves
A farsighted person uses glasses with a refractive power of 3.6 diopters. What is this person's near point when not wearing glasses
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