What does a mirror always do? Select the correct option.
Reflects
Understanding the Primary Function of a Mirror
The question asks about the fundamental action that a mirror always performs. Let's examine the nature of a mirror and the options provided to determine its constant function.
What is a Mirror?
A mirror is typically a surface, usually glass, coated with a reflective material such as silver or aluminum. Its primary purpose is to form an image by reflecting light.
Analyzing the Options
Let's look at each option:
- Distorts: While some mirrors (like funhouse mirrors) are designed to distort images, a standard flat mirror aims to produce a true-to-size and undistorted virtual image. Moreover, even distorted mirrors are still fundamentally reflecting light to cause that distortion. So, a mirror doesn't always distort; ideally, it doesn't.
- Reflects: This is the defining characteristic of a mirror. A mirror works by bouncing light rays off its surface. This process is called reflection. Without reflection, a surface is not acting as a mirror. Therefore, a mirror must always reflect light.
- Reveals the truth: This is a metaphorical or philosophical statement, not a physical property of a mirror in the context of optics or physics. A mirror shows a visual representation of what is in front of it, but this isn't what it does physically as its primary function.
- Repels: This term is incorrect in this context. Repelling is usually associated with forces, like magnetic poles repelling each other. A mirror interacts with light through reflection, not repulsion.
Conclusion
Based on the analysis of the options and the physical properties of a mirror, the action that a mirror always performs is reflection. Its function relies entirely on its ability to reflect light.
The correct option is Reflects.
Revision Table: Mirror Properties
| Property | Description | Always True for a Mirror? |
|---|---|---|
| Reflects Light | Bounces light rays off its surface. | Yes |
| Distorts Image | Changes the shape or size of the image (e.g., curved mirrors). | No (Only for non-flat or imperfect mirrors) |
| Forms Images | Creates a visual representation (real or virtual) of objects. | Yes (As a result of reflection) |
| Reveals Truth | Metaphorical concept. | No (Not a physical property) |
| Repels Light | Incorrect term for light interaction. | No |
Additional Information: Types of Reflection and Mirrors
When light hits a surface, it can be absorbed, transmitted, or reflected. A mirror is designed to maximize reflection.
- Specular Reflection: This is the type of reflection seen in smooth, shiny surfaces like mirrors. Light rays that hit the surface parallel to each other are reflected parallel to each other, allowing for clear image formation.
- Diffuse Reflection: Occurs when light hits a rough surface. Light rays are scattered in many different directions. Most objects we see are visible because they diffusely reflect light.
There are different types of mirrors, such as flat (plane) mirrors, convex mirrors, and concave mirrors. While they produce different types of images (virtual, real, magnified, reduced), their fundamental action remains the same: reflection of light.
Important Questions from Critical Reasoning
In this question, a passage is given followed by a statement. Read the passage carefully and judge the statement based on the given passage.
Over three lakh birds of different species have arrived in Kashmir valley, according to wildlife warden wetlands of Kashmir, Rouf Zargar. Usually every year, approximately 9 lakh birds migrate to the valley from different cold habitats of the world. Therefore, the valley witnesses new species of birds every year. Birds can go any place depending upon the leading flock. Kashmir is comparatively less cold than their own natural habitat which makes birds to start migrating to the valley in September every year.
The birds can help in increasing tourism in the valley. Shikara owner Bashir Ahmad said, "Since tourism in valley is not gaining its pace in valley after 2016 turmoil, these migratory birds can attract tourist from across the globe, if tourism department can project them in planned way, and advertise at big level, definitely it will help to boost tourism in valley"
Statement:
Birds migrate to Kashmir valley as it is colder compared to their natural habitat.
Choose the appropriate one from the following options
A -The statement is definitely true
B -The statement is probably true
C -The statement is cannot be determined
D -The statement is definitely false
- Statement:
The cross cultural social work implies the interaction between one culture and a client of another culture.
Conclusion:
It enables the professional social work for effective intervention of cross cultural diversity management. - Among the following propositions two are related in such a way that one is the denial of the other. Which are those propositions?
Propositions:
(a) All elephants are equal to cats
(b) Some elephants are not equal to cats
(c) Some elephants are equal to cats
(d) Few elephants are also equal to cats Consider the given statement and decide which of the given assumptions is/are implicit in the statement.
Statement:
Indians go abroad to get better jobs.
Assumptions:
1. Indians can get better jobs abroad.
2. India lacks better job opportunities.
Human beings always have _______.
