# physics

TRUE OR FALSE

The virtual image formed by a convex mirror is always enlarged.
A convex mirror never forms a real image of a real object.
When the object of a concave mirror is inside the focal point, the image is virtual.
The image produced by a convex mirror is always closer to the mirror than it would be in a plane mirror for the same object distance.
A concave mirror always forms a virtual image of a real object.
A virtual image formed by a concave mirror is always enlarged.
A concave mirror always forms an enlarged real image of a real object.

1. 👍 0
2. 👎 0
3. 👁 380
1. what are your ideas on this?

hint: it depends on the distance of the object from the mirror.

1. 👍 0
2. 👎 0
2. they're true false that's all the info given

1. 👍 0
2. 👎 0
3. no it's cool i finally think i got it.

False
True
True
True
False
True
False

1. 👍 0
2. 👎 0
4. All answers are correct. The next-to-last required a bit of thinking.
1/do must be less than 1/|di| if di is negative (virtual). You also know that f is positive. Therefore
1/do - 1/f = 1/|di|
Therefore 1/do < |1/|di| ;
|di| > do so the image is enlarged.

1. 👍 0
2. 👎 0

## Similar Questions

1. ### Physics

A real object is located at the zero end of a meter stick. A large concave mirror at the 100 cm end of the meter stick forms an image of the object at the 72.5 cm position. A small convex mirror placed at the 20.6 cm position

2. ### Science

1. A convex mirror with a focal length of -20cm forms an image 15cm behind the surface. If the object height is 1.2cm what is the image height? 2. An object is placed 10cm in front of a mirror and an image is formed that has a

3. ### physics

Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. One method uses a second, convex, lens to produce a virtual object for the concave lens. Under the proper

4. ### engineering science

The spherical side mirror on a car is convex and has a radius of curvature of 25 cm. Another car is following, 20 m behind the mirror. If the height of the car is 1.6 m, how tall is its image?

1. ### physics

A convex mirror in an amusement park has a radius of curvature of 3.00m. A man stands in front of the mirror so that his image is half as tall as his actual height. At what distance must the man focus his eyes in order to see his

2. ### physics

4. An object 3.00 cm high is placed 20.0 cm from a convex mirror with a focal length of 8.00 cm. Find (a) the position of the image, (b) the magnification of the mirror, and (c) the height of the image

3. ### Physics

The distance between a 10 cm tall candle and the reflecting surface of a concave mirror is 40 cm. The radius of curvature of the mirror is 25 cm. Now, A. What is the focal length of the mirror? B. What is the image distance? C.

4. ### Physics

True/False 1)Specular reflection obeys the laws of reflection while diffuse reflection does not. False. drwls said its true but I disagree can you please explain. 2)A convex lens is used to obtain an enlarged virtual image. True.

1. ### physics

1)A convex lens is used to obtain an enlarged virtual image. false. 2)The lens of the eye has a fixed focal length. false.

2. ### physics

A convex mirror of focal length 30cm.produces a real and inverted image of magnification 0.5. By how much distance the object should be brought closer to obtain a virtual and erect image of magnification 2?

3. ### physics

an object is placed 15 cm in front of a convex lens of focal length 10cm. Find the nature and position of the image formed. where should a concave mirror of radius of curvature 20cm be placed so that the final image is formed at

4. ### Physics

A convex mirror forms an image of height of 2.4 cm, If the radius of curvature of thr mirror is 40 cm, find the heihgt and distance of the object from the mirror.