Author Question: Which one of the following is normally not a characteristic of a simple two-lens refracting ... (Read 48 times)

j.rubin · **on:** Jul 29, 2018

Which one of the following is normally not a characteristic of a simple two-lens refracting astronomical telescope?

A) The final image is virtual.
B) The final image is inverted.
C) The angular size of the final image is larger than that of the object.
D) The objective forms a virtual image.

Question 2

How much energy is transported across a 1.00-cm2 area per hour by a sinusoidal electromagnetic wave whose electric field has a maximum strength of 30.4 V/m?

(0 = 8.85 10-12 C2/N m2, 0 = 4 10-7 T m/A, c = 3.0 108 m/s)
A) 0.44 J B) 0.44 mJ C) 0.44 nJ D) 0.44 J