1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klio [65]
2 years ago
9

A 12-inch object is placed 30 inches in front of a plane mirror. A ray of light from the object strikes the mirror at a 45-degre

e angle. How tall is the image produced by the mirror?
A) 12 inches
B) 30 inches
C) 24 inches
D) 45 inches
Physics
2 answers:
JulsSmile [24]2 years ago
4 0

Answer: A. 12inches

Explanation:

One of the characteristics of an object placed in front of a plane mirror is that the object distance(u) is equal to the image distance(v) no matter the position of the object from the mirror.

Since object distance is 30 inches, the image distance will be 30inches as will i.e u = v

Using the relationship to get the height of the image

v/u = h1/h0

Where h1 is image height and h0 is object height.

h0 = 12inches

Substituting the values given in the formula we have

30/30 = h1/12

h1 = 12inches.

This means that the image produce by the object is also 12inches tall.

gtnhenbr [62]2 years ago
3 0

I believe that it is C.24 inches

You might be interested in
The number of planets, besides the earth, that are visible to the unaided eye is
sergejj [24]
The answer should be 5 it’s easy
3 0
3 years ago
What is the direction of the centripetal force when applied to an object?
mihalych1998 [28]
For an object moving in a path that's a circle or a part of one,
the centripetal force acts in the direction toward the center of
the circle.  That direction is perpendicular to the way the object
is moving.
3 0
3 years ago
Read 2 more answers
Which example best shows a person using the principle of force in an activity?
sleet_krkn [62]
A bowler throws a bowling ball that rolls down the lane, im like 98% sure it’s that one
6 0
2 years ago
3. Pencils should not be used inside the computer to change the setting of switches or to
Elena-2011 [213]

Answer: True

Explanation:

Pencils indeed should not be used as tools when working inside a computer because it is made of Lead.

Lead is a conductor of electricity and as such if it is left inside the computer at even miniscule quantities, it can redirect electricity and damage components in the process.

If one wants to work inside a computer, it is best to use tools like tweezers and needle-nose pliers.

8 0
3 years ago
A laser printer uses a laser beam to “burn” images onto paper.<br><br> a)True<br> b)False
anastassius [24]
The answer is false because the laser doest burn the images onto the paper.
5 0
3 years ago
Read 2 more answers
Other questions:
  • A rocket weighs 9800N (opposing force) what is it mass? What netforce moves the rocket? What applied force gives it a vertical a
    14·1 answer
  • To what temperature must you raise a silver wire (c = 0.0038), originally at 20.0°C, to double its resistance, neglecting any ch
    9·1 answer
  • The magnitude E of an electric field depends on the radial distance r according to E = A/r4, where A is a constant with unit vol
    5·1 answer
  • Explain how to determine the volume of an irregularly shaped object such as a rock
    7·1 answer
  • Translation is the process by which the DNA code is reads to create the RNA strand
    8·1 answer
  • If humans evolved from apes or chimps, why are the chimps and apes still here?
    11·2 answers
  • SYW A force of 175 N is needed to keep a stationary engine of weight 640 N on wooden skids from
    14·2 answers
  • A bird has a kinetic energy of 3 J and a potential energy of 25 J. What is the mechanical energy of the bird?
    8·2 answers
  • If time travel to the future existed, doesn't that mean that the future has already occurred and that we are living in the past?
    5·1 answer
  • He wrote a book of aerobics
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!