A Young's double slit has a slit separation of 2.50 × 10^-5 m on which a monochromatic light beam is directed. The resultant bright fringes on a screen 1.00 m from the double slit are separated by 2.30 × 10^-2 m. What is the wavelength of this beam? (1 nm = 10-9 m)
a. 575 nm
c. 373 nm
b. 454 nm
d. 667 nm
A
You might also like to view...
If y = 0.02 sin (30x ? 400t) (SI units), the angular frequency of the wave is
a. 30 rad/s. b. 30/2? rad/s. c. 400/2? rad/s. d. 400 rad/s. e. 40/3 rad/s.
A 35.0 kg girl swings on a swingset. At the bottom of the swing’s path, she feels as though she weighs 435 N. What is the value of the tension in the swing’s ropes at the bottom of the swing’s path?
A. 92 N B. 435 N C. 343 N D. 778 N
The thickness of the disk of the Milky Way is about ________ the diameter of the disk.
A) 1/10th of B) 1/1000th of C) 1/1,000,000th of D) the same as
A cylindrical wire has a resistance R and resistivity ?. If its length and diameter are BOTH cut in half,
(a) what will be its resistance? A) 4R B) 2R C) R D) R/2 E) R/4 (b) what will be its resistivity? A) 4? B) 2? C) ? D) ?/2 E) ?/4 What will be an ideal response?