[Answered] An object is placed 21 cm from a concave lens of focal length 25 cm. What is the magnification? ...

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Author Question: An object is placed 21 cm from a concave lens of focal length 25 cm. What is the magnification? ... (Read 66 times)

lak

Hero Member
Posts: 546

on: Jul 29, 2018

An object is placed 21 cm from a concave lens of focal length 25 cm. What is the magnification?

A)

-0.54
B)

0.54
C)

-0.32
D)

-0.22
E)

0.22

Question 2

The scalar product is commutative.

Indicate whether the statement is true or false

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Marked as best answer by a Subject Expert

robbielu01

Sr. Member
Posts: 336

Reply #1 on: Jul 29, 2018

Answer to Question 1

B

Answer to Question 2

TRUE

lak

Member
Posts: 546

Reply 2 on: Jul 29, 2018

Gracias!

bimper21

Member
Posts: 309

Reply 3 on: Yesterday

Thanks for the timely response, appreciate it

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