White light is incident normally on a thin soap film having an index of refraction of 1.34
It reflects with an interference maximum at 684 nm and an interference minimum at 570 nm with no minima between those two values. The film has air on both sides of it. What is the thickness of the soap film?
A) 766 nm
B) 627 nm
C) 638 nm
D) 894 nm
E) 510 nm
C
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The standard unit of mass in the SI is the ______________
Fill in the blank(s) with correct word
A 12.6-V battery supplies a 2.0-A current for 2.0 minutes. What is the work done by the battery during this process?
a. 0 J c. 2.5 × 10^2 J b. 3.0 × 10^3 J d. 1.5 × 10^4 J
A transverse periodic wave is represented by the equation z(y, t) = 1.50 cm sin(1,250 rad/s t + 10.0
What is the direction of the vibration of the wave?
A. the x direction B. the y direction C. the z direction
Which of the following characteristics are held in common by both gravitational and electrostatic forces when dealing with either point masses or charges?
a. inverse square distance law applies b. forces are conservative c. potential energy is a function of distance of separation d. all of the above choices are valid