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Ray Of Light [21]
3 years ago
12

Under which conditions do both convex and concave mirrors form virtual images? State whether or not each can form a real image.I

f the mirror can form a real image, describe how this occurs.
Physics
2 answers:
natali 33 [55]3 years ago
8 0
Concave mirror​s can make a real image.when the object is away from the mirror it is called real image and when the object is closer to the mirror it is called virtual mirror.
leva [86]3 years ago
6 0

Answer:

In case of concave mirror the real image will form when object is placed at a distance which is more than the focal length of the mirror.

So here if more distance from the mirror then we will have more chance to get real image.

Now if we wish to have virtual image using concave mirror then we can say that object must have to place at distance less than the focal length of the mirror.

So if object is placed closer to the mirror then the image must be virtual and erect.

Now in case of convex mirror we will say that image formed will be virtual image in all cases because the focal length of the convex mirror is always positive so it will always form virtual image.

So here concave mirror if distance of object is less than the focal length then it will form virtual image and if the distance of object is more than focal length then it will form real image. While is convex mirror it will always form virtual image.

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A compound microscope is equipped with two objective lenses (10x and 45x) and has a 10x ocular lens. The highest magnification a
Wittaler [7]

Answer:

450X

Explanation:

When a specimen is been viewed, both

objective and ocular lenses works together so that the object is magnified.

From the question,objective lenses are;

1)10x

2)45x

ocular lens= 10x

Highest magnification

= 10X ocular × 45X objective

=450X

This implies that the image that was viewed will appear 450 times the actual size.

5 0
2 years ago
The third floor of a house is 8m above street level. How much work is needed to move a 136kg refrigerator to the third floor?
jonny [76]

m = Mass of the refrigerator to be moved to third floor = 136 kg

g = Acceleration due to gravity by earth on the refrigerator being moved = 9.8 m/s²

h = Height to which the refrigerator is moved  = 8 m

W = Work done in lifting the object

Work done in lifting the object is same as the gravitational potential energy gained by the refrigerator. hence

Work done = Gravitation potential energy of refrigerator

W = m g h

inserting the values

W = (136) (9.8) (8)

W = 10662.4 J



8 0
2 years ago
What do organisms need in order to reproduce? This is Science Btw
Delicious77 [7]

Answer:

Energy. They need energy.

Explanation:

7 0
3 years ago
Read 2 more answers
Read the scenario below and answer the question that follows. Jane is a psychologist. She submits a study on sleep to a prestigi
Setler79 [48]
A:the other options are examples of unethical behavior
3 0
3 years ago
Read 2 more answers
Astronomers suspect that a galaxy’s type can be affected both by the conditions in the protogalactic cloud from which it forms (
Katen [24]

Answer:

The items here are describing either a condition in a later interacton or a protogalactic cloud.  The results matching with spiral and elliptical galaxy are:

For spiral galaxy are options 6,3,2 and 5.

and for elliptical galaxy are options 4 and 1.

Explanation:

Here it is given that astrnomers suspect that types of galaxy can be affected both by the conditions which occurs due to protogalactic cloud and then from it forms the initial conditions and then by the later interactions with the other galaxies.

so, both types of galaxies are matched with their respective items given:

A. Spiral galaxy:

    2. A galaxy collision results tostripping of gas.

    3. The protogalactic cloud rotates in a very slow motion.

    5. The density of protogalactic cloud is very high.

    6. when the protogalactic cloud shrinks cloud forms very rapidly.

B. Elliptical galaxy:

    1. The protogalactic cloud has high angular momentum.

    4. Most of the protogalactic gases settles down into a disk.

6 0
3 years ago
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