Author Question: The average magnetic energy density of an electromagnetic wave is 8.95 10-5 J/m3. What is the ... (Read 39 times)

RODY.ELKHALIL · **on:** Jul 29, 2018

The average magnetic energy density of an electromagnetic wave is 8.95 10-5 J/m3. What is the magnetic field component of this wave?

A)

12.0 T
B)

13.0 T
C)

14.0 T
D)

15.0 T
E)

16.0 T

Question 2

Light from a monochromatic source shines through a double slit onto a screen 5.0 m away. The slits are 0.18 mm apart. The dark bands on the screen are measured to be 1.7 cm apart. What is the wavelength of the incident light?

A)

457 nm
B)

306 nm
C)

392 nm
D)

612 nm
E)

784 nm