Echo : Sound :: Reflection:?
Analogy Breakdown: Echo and Sound
The question presents an analogy: Echo is related to Sound. An echo occurs when a sound wave bounces off a surface and returns to the listener. Therefore, an echo is essentially a reflection of sound waves. The relationship identified here is between a specific phenomenon (echo) and the medium it involves (sound).
Understanding Reflection
Reflection is a broader physical phenomenon where a wave (like light, sound, or water waves) bounces off a surface. The question asks us to identify a term that relates to 'Reflection' in the same way that 'Sound' relates to 'Echo'. We are looking for the entity or medium that is typically associated with the process of reflection.
Evaluating Options for Reflection
Let's carefully examine each option in the context of the analogy 'Echo : Sound :: Reflection : ?':
- Mirror: A mirror is an object that causes reflection, especially of light. While mirrors are used to observe reflections, the mirror itself is not what undergoes reflection in the way sound undergoes reflection to create an echo.
- Refraction: Refraction is the bending of waves as they pass from one medium into another. This is a different phenomenon from reflection (bouncing back).
- Light: Light waves bounce off surfaces when they encounter them. This process is known as the reflection of light. Just as an echo is the reflected form of sound, reflection is a fundamental process that happens to light. This establishes a direct parallel: Echo is the reflection of Sound; Reflection is the process that applies to Light.
- Image: An image is typically formed as a result of reflection (e.g., in a mirror or water). While an image is a consequence of reflection, 'light' is the wave that actually undergoes the process of reflection.
Finalizing the Analogy
The analogy works by linking a specific instance or result of a physical process to the underlying medium or wave involved. An echo is a specific type of sound reflection. Similarly, reflection is a fundamental process involving light waves bouncing off surfaces. Therefore, Light is the most appropriate answer as it represents the medium that undergoes reflection, mirroring the role of sound in the case of an echo.
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Important Questions from Reasoning Analogy
WSO is related to XXUP in a certain way based on the English alphabetical order. In the same way, ONKG is related to PPMH. To which of the following is VURN related, following the same logic?
Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.
(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
Withdraw : ExtractSelect the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.
Duleep Trophy : Cricket
Select the set in which the numbers are related in the same way as are the numbers of the following sets.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13, can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
(4, 35, 11)
(1, 82, 61)
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(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g., 13 – Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
