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Author Question: An object is placed 10 cm in front of a mirror, and an image is formed that has a magnification of 3 ... (Read 74 times)

Mimi

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  • Posts: 542
on: Jul 28, 2018
An object is placed 10 cm in front of a mirror, and an image is formed that has a magnification of 3 . Which of the following statements is false?
 a. The image is upright.
  b. The image is virtual.
  c. The focal length of the mirror is 15 cm.
  d. This is the only true statement.

Question 2

How many molecules are there in 14 grams of nitrogen gas?
 a. NA/2
  c. 2 NA
  b. NA
  d. The answer is not given.


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vickyvicksss

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Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Mimi

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  • Posts: 542
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

mochi09

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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