ഒരു ചക്രത്തിന് 84 സെന്റീമീറ്റർ വ്യാസമുണ്ട്. 792 മീറ്റർ പിന്നിടാൻ ആവശ്യമായ സമ്പൂർണ്ണ ഭ്രമണങ്ങളുടെ എണ്ണം ഇതാണ്:

This question was previously asked in
RRB ALP Previous Paper 5 (Held On: 10 Aug 2018 Shift 3)
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  1. 300
  2. 350
  3. 330
  4. 320

Answer (Detailed Solution Below)

Option 1 : 300
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Detailed Solution

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ചക്രത്തിന്റെ വ്യാസം = 42 cm 

ചക്രത്തിന്റെ ആരം = 42 cm 

ചക്രത്തിന്റെ ചുറ്റളവ് = 2πr

ദൂരം = 792 മീറ്റർ = 79200 സെ.മീ

ഭ്രമണങ്ങളുടെ എണ്ണം, n = ദൂരം/2πr

⇒ n = 79200/ {2 × (22/7) × 42}

∴ ഭ്രമണങ്ങളുടെ എണ്ണം, n = 300

 

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