Heisenberg's Uncertainty Principle states that A) all ...

[scienceeasy]

Heisenberg's Uncertainty Principle states that
 
  A) all measurements are to some extent inaccurate, no matter how good the instrument used.
  B) we cannot in principle know simultaneously the position and momentum of a particle with absolute certainty.
  C) we can never be sure whether a particle is a wave or a particle.
  D) at times an electron appears to be a particle and at other times it appears to be a photon.
  E) the charge on the electron can never be known with absolute accuracy.

Question 2

Describe a mirror which takes an object at a distance of 47. cm and forms a real image at 23. cm.
 
  What will be an ideal response?

[mjenn52]

Answer to Question 1

B

Answer to Question 2

concave mirror with focal length 15.4 cm

[scienceeasy]

Great answer, keep it coming

[rachel]

Excellent