The length of the telescope is 1.60 m, and it has a magnification ...

[meagbuch]

The length of the telescope is 1.60 m, and it has a magnification of 60.0. What is the focal length of the objective lens?
 
  A) 60.0 cm
  B) 157 cm
  C) 100 cm
  D) 128 cm
  E) 96.0 cm

Question 2

A flat circular coil has 200 identical loops of very thin wire. Each loop has an area of 0.12 m2 and carries 0.50 A of current. This coil is placed in a magnetic field of 0.050 T oriented at 30 to the plane of the loop.
 
  What is the magnitude of the magnetic torque on the coil? A) 0.25 N  m
  B) 0.52 N  m
  C) 2.5 N  m
  D) 5.2 N  m

[vickybb89]

Answer to Question 1

B

Answer to Question 2

B