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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 80 times)

Mimi

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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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Reply 2 on: Jul 28, 2018
Wow, this really help

miss_1456@hotmail.com

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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