Questions from College Physics

Q: A camera lens (n = 1.50) is coated

A camera lens (n = 1.50) is coated with a thin film of magnesium fluoride (n = 1.38) of thickness 90.0 nm. What wavelength in the visible spectrum is most strongly transmitted through the film?

Q: When does the string first look completely flat for t > 0

When does the string first look completely flat for t > 0?

Q: A soap film has an index of refraction n = 1.

A soap film has an index of refraction n = 1.35. The film is viewed in reflected light. (a) At a spot where the film thickness is 910.0 nm, which wavelengths are missing in the reflected light? (b)...

Q: A soap film has an index of refraction n = 1.

A soap film has an index of refraction n = 1.35. The film is viewed in transmitted light. (a) At a spot where the film thickness is 910.0 nm, which wavelengths are weakest in the transmitted light?...

Q: Two coherent EM waves have amplitudes of E0 and 0.67E0

Two coherent EM waves have amplitudes of E0 and 0.67E0. What is the resulting amplitude when they interfere destructively?

Q: In an amusement park maze with all the walls covered with mirrors

In an amusement park maze with all the walls covered with mirrors, Pilar sees Hernando's reflection from a series of three mirrors. If the reflected angle from mirror 3 is 55° for the mirror arrangeme...

Q: It is believed that a large electric fish known as Torpedo occidentalis

It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. A typical fish can deliver a potential difference of 0.20 kV for a duration of 1.5 ms. Th...

Q: Belinda needs to find the CM of a sculpture she has made

Belinda needs to find the CM of a sculpture she has made so that it will hang in a gallery correctly. The sculpture is all in one plane and consists of various shaped uniform objects with masses and s...

Q: The intensity of reflection of various wavelengths of light projected onto the

The intensity of reflection of various wavelengths of light projected onto the eye can be used to determine the thickness of the tear film that coats the cornea. The tear film and cornea have indices...

Q: At a science museum, Marlow looks down into a display case

At a science museum, Marlow looks down into a display case and sees two pieces of very flat glass lying on top of each other with light and dark regions on the glass. The exhibit states that monochrom...