[Answered] A convex mirror with focal length of -20 cm forms an image 15 cm behind the surface. Where is the ...

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Author Question: A convex mirror with focal length of -20 cm forms an image 15 cm behind the surface. Where is the ... (Read 64 times)

Jkov05

Hero Member
Posts: 556

on: Jul 28, 2018

A convex mirror with focal length of -20 cm forms an image 15 cm behind the surface. Where is the object located as measured from the surface?
a. 30 cm
c. 15 cm
b. 7.5 cm
d. 60 cm

Question 2

Which type of heating causes sunburn?
a. conduction
c. radiation
b. convection
d. all of the above

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Edwyer

Sr. Member
Posts: 337

Reply #1 on: Jul 28, 2018

Answer to Question 1

D

Answer to Question 2

C

Jkov05

Member
Posts: 556

Reply 2 on: Jul 28, 2018

YES! Correct, THANKS for helping me on my review

xiazhe

Member
Posts: 331

Reply 3 on: Yesterday

Great answer, keep it coming

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