Comprehension

When I was a child, there used to be a fair in my town during the Diwali and Id festivities. Among the many things I saw was a strange puppet show. There were three puppets, one of a man, another of a woman, and the third one of a rakshasa (demon). Whenever the rakshasa was brought close to the woman, she would turn her face away. But when the man was brought close to her, she would turn back and face the man.

Question: 1

The strange behaviour of the woman puppet was:

Updated On: Apr 8, 2025
  • could be because of magnets in the heads of all three puppets or someone moving them with sticks or strings.

  • definitely because there were magnets fixed in the heads of all three puppets.

  • definitely because someone was moving it with sticks or strings.

  • just a random thing. Since we were children then, we thought it was happening in a particular way.

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The Correct Option is A

Approach Solution - 1

  1. Analyze the Woman Puppet's Behavior:
  • When the Rakshasa (Demon) puppet is near, she turns away. This suggests a repulsive or avoidance action.
  • When the Man puppet is near, she turns towards him. This suggests an attractive or facing action.
  • This behavior is described as consistent ("Whenever...").
  1. Evaluate Possible Mechanisms:
    • Sticks or Strings: A puppeteer could easily manipulate the woman puppet using hidden sticks or strings to make her turn away from the rakshasa and towards the man. This is a very common method for puppet shows and a plausible explanation.
    • Magnets: If magnets were placed in the heads:
      • The woman puppet's head could pivot.
      • The Rakshasa puppet's head could have a magnet oriented to repel the front of the woman's head's magnet (e.g., like poles facing), causing her to turn away.
      • The Man puppet's head could have a magnet oriented to attract the front of the woman's head's magnet (e.g., opposite poles facing), causing her to turn towards him.
    • Randomness: The description implies a consistent, repeatable action ("Whenever"), making randomness an unlikely explanation. The observation of a specific pattern points towards a deliberate cause.
  2. Compare the Options:
    • Option 3 ("definitely because someone was moving it..."): Possible, but maybe not the *only* possibility. The word "definitely" is too strong.
    • Option 2 ("definitely because there were magnets..."): Possible, but maybe not the *only* possibility. The word "definitely" is too strong.
    • Option 1 ("could be because of magnets... or someone moving them..."): This option acknowledges both plausible mechanisms (manual manipulation and magnets) without claiming certainty for either one exclusively. This is the most balanced and reasonable explanation.
    • Option 4 ("just a random thing..."): This contradicts the description of consistent behavior.

The strange behaviour could be explained by either manual manipulation (sticks/strings) or strategically placed magnets. Therefore, option 3 is the most appropriate conclusion.

Correct Option: 1. could be because of magnets in the heads of all three puppets or someone moving them with sticks or strings.

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Approach Solution -2

The behavior of the woman puppet—turning away from the rakshasa and turning toward the man—suggests a consistent, cause-effect action. This could be due to hidden magnets (attraction/repulsion) or could also be due to someone manually controlling the puppet with strings or sticks. So: 
Correct answer: 1. could be because of magnets in the heads of all three puppets or someone moving them with sticks or strings.

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Question: 2

If there were magnets fixed in the heads of the puppets inside the head such that one end of the magnet was at the mouth (M) and the other at the back of the head (B), then the arrangement of the north (N) and south (S) poles of the magnets must be like:

Updated On: Apr 8, 2025
  • man: M-N, B-S; woman: M-N, B-S; demon: M-N, B-S

  • man: M-N, B-S; woman: M-S, B-N; demon: M-S, B-N

  • man: M-S, B-N; woman: M-S, B-N; demon: M-S, B-N

  • man: M-S, B-N; woman: M-N, B-S; demon: M-S, B-N

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The Correct Option is B

Solution and Explanation

We need to find the magnetic pole arrangement (N/S) at the Mouth (M) and Back (B) of each puppet's head that explains the woman's behavior.

Conditions to satisfy:

  1. Woman turns AWAY from Demon: The Mouth (M) of the Woman puppet must be repelled by the Mouth (M) of the Demon puppet. Repulsion happens between like poles (N-N or S-S).
  2. Woman turns TOWARDS Man: The Mouth (M) of the Woman puppet must be attracted to the Mouth (M) of the Man puppet. Attraction happens between opposite poles (N-S or S-N).

Let's test each option against these conditions:

1. man: M-N, B-S; woman: M-N, B-S; demon: M-N, B-S 

  • Woman M (N) vs Demon M (N): Like poles (N-N) -> Repel. (Condition 1 SATISFIED)
  • Woman M (N) vs Man M (N): Like poles (N-N) -> Repel. (Condition 2 FAILED - Should Attract)

2. man: M-N, B-S; woman: M-S, B-N; demon: M-S, B-N

  • Woman M (S) vs Demon M (S): Like poles (S-S) -> Repel. (Condition 1 SATISFIED)
  • Woman M (S) vs Man M (N): Opposite poles (S-N) -> Attract. (Condition 2 SATISFIED)

3. man: M-S, B-N; woman: M-S, B-N; demon: M-S, B-N

  • Woman M (S) vs Demon M (S): Like poles (S-S) -> Repel. (Condition 1 SATISFIED)
  • Woman M (S) vs Man M (S): Like poles (S-S) -> Repel. (Condition 2 FAILED - Should Attract)

4. man: M-S, B-N; woman: M-N, B-S; demon: M-S, B-N

  • Woman M (N) vs Demon M (S): Opposite poles (N-S) -> Attract. (Condition 1 FAILED - Should Repel)

Only Option 2 satisfies both required conditions.

The correct option is: 2. man: M-N, B-S; woman: M-S, B-N; demon: M-S, B-N

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Question: 3

One of my friends stayed back one day at the show and kept looking at the puppets for a long time. He asked the manager of the show to move the puppets in certain ways. The manager as a kind person and with my friend insisting, he agreed to do what my friend asked for. But he did not tell the friend if there were magnets in the puppets. But the next day, the friend told us that he was sure that there were magnets inside the puppets’ faces. What did he ask the manager to do and what could he have seen? He must have seen the effect after asking for moving the puppets:

Updated On: Apr 8, 2025
  • backwards towards each other.

  • at different speeds

  • up and down

  • On the same plane, but in different directions.

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The Correct Option is A

Approach Solution - 1

  1. Goal: The friend wants to confirm the presence of magnets without seeing inside the puppets or being told. He needs to observe behavior that is uniquely characteristic of magnetic forces acting at a distance, rather than just mechanical control.
  2. Magnetic Forces: Magnets exert forces (attraction or repulsion) that depend on the orientation of the poles and the distance. These forces act even without direct contact.
  3. How to Test: The original observation involved bringing the fronts (Mouths) of the puppets together. If magnets are responsible, they have specific poles at the front (M) and back (B). A good test would be to see if interactions also occur when the *backs* (B) of the puppets are brought close. A puppeteer using strings/sticks might only be set up to control the forward-facing interactions easily, while magnetic interactions should also occur consistently between the backs of the heads if the magnets are placed as hypothesized.
  4. Analyzing Options:
    • 1. Backwards towards each other: This means bringing the back of one puppet's head close to the back of the woman puppet's head. Based on the deduced magnetic arrangement (Option 2 from part B: Man B-S, Woman B-N, Demon B-N), we would expect:
      • Woman's Back (N) vs Man's Back (S): Attraction (Opposite poles)
      • Woman's Back (N) vs Demon's Back (N): Repulsion (Like poles)
    • 2. At different speeds: The speed of approach doesn't fundamentally change whether the force is magnetic or mechanical. A puppeteer can control speed.
    • 3. Up and down: Vertical movement is unlikely to reveal much about the horizontal turning mechanism caused by magnets placed front-to-back.
    • 4. On the same plane, but in different directions: This is similar to the original observation and might not provide definitive proof beyond what was already seen.
  5. Conclusion: Observing the interactions when the puppets are moved backwards towards each other (bringing their backs close) provides a specific test for the predicted magnetic interactions (attraction to the man's back, repulsion from the demon's back) that is less likely to be perfectly replicated by simple mechanical means alone. This would allow the friend to be sure about the magnets.

The correct option is: 1. backwards towards each other.

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Approach Solution -2

To confirm the presence of magnets, your friend would need to observe attraction or repulsion between the puppets without any visible mechanical movement causing it. He likely asked the manager to move the puppets backwards towards each other (i.e., bringing their backs or fronts close without direct control showing obvious movement), and then observed either:

  • Repulsion when same poles faced each other 
  • Attraction when opposite poles faced each other

This would clearly indicate the presence of magnetic interaction. Correct answer: 1. backwards towards each other.

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