What minimum thickness of oil (n = 1.50) on the surface of water (n = 1.33) would give constructive interference for 550 nm light with normal incidence?

A. 78.0 nm
B. 80.0 nm
C. 92.0 nm
D. 183 nm
E. 275 nm


C. 92.0 nm

Physics & Space Science

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An outer surface of a wood burning stove in a cabin is at a temperature of 150What is the wavelength where the blackbody is a maximum?

A. 3.64 micrometer B. 4.02 micrometer C. 4.57 micrometer D. 5.25 micrometer E. 6.85 micrometer

Physics & Space Science

Equipotential Surfaces: The equipotential surfaces for two spherical conductors are shown in the figure, with the value of potential marked on the line for each surface.(a) If the distance between points A and B is 2.5 cm what is the approximate intensity of the electric field between these two points?(b) If the distance between points C and D is 2.5 cm what is the approximate intensity of the electric field between these two points?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Which one of the following is the correct order of the electromagnetic spectrum from low to high frequencies?

A) radio waves, infrared, microwaves, UV, visible, X-rays, gamma rays B) radio waves, UV, X-rays, microwaves, infrared, visible, gamma rays C) radio waves, microwaves, infrared, visible, UV, X-rays, gamma rays D) radio waves, microwaves, visible, X-rays, infrared, UV, gamma rays E) radio waves, infrared, X-rays, microwaves, UV, visible, gamma rays

Physics & Space Science

An alpha particle is emitted from a radioactive source with an energy of 5 MeV. How fast is it moving (in m/s)? (m = 4.002 603 u, 1 u = 1.66 × 10^-27 kg.)

a. 2.4 × 10^7 b. 1.6 × 10^7 c. 3.7 × 10^7 d. 4.6 × 10^7 e. 2.1 × 10^7

Physics & Space Science