Light is incident on a double-slit. The fourth bright band has an angular distance of 7.0° from the central maximum. What is the distance between the slits (in ?m)? (Assume the frequency of the light is 5.4 × 10^14 Hz.)
a. 27
b. 21
c. 24
d. 18
e. 14
d
You might also like to view...
A conical pendulum is constructed with a string 2.00 m in length. The pendulum is set in horizontal circular path the vertical axis. If the angle the string makes with the vertical axis is 45.0 degrees, then the angular velocity of the conical pendulum is
A. 4.00 rad/s. B. 3.55 rad/s. C. 3.04 rad/s. D. 2.63 rad/s. E. 2.01 rad/s.
What is the net power radiated by a little animal with a surface area of 0.075 m2 if his emissivity is 0.75, his skin temperature is 315 K, and he is in a room with a temperature of 290 K? (? = 5.67 × 10-8 W/m2 ? K4)
A) 8.8 W B) 6.0 W C) 8.0 W D) 15 W E) 18 W
Which of the following is(are) found mainly between Mars and Jupiter?
a. Asteroids b. Meteoroids c. Comets d. Interplanetary dust
Consider the circuit shown in the figure. What power is dissipated by the entire circuit?
a.
14 W
b.
28 W
c.
52 W
d.
110 W