alleryपातळ नलिकाकार कवचाचें आयतन कितल्या इतलें आसता?
A2π × भितरली त्रिज्या × उंचाय × जाड
B2π × सरासरी त्रिज्या × उंचाय × दाटाय
C4π × सरासरी त्रिज्या × उंचाय × दाटाय
Dπ × सरासरी त्रिज्या² × उंचाय × दाटाय
Answer & Solution
Correct answer: B. 2π × सरासरी त्रिज्या × उंचाय × दाटाय
कवच उगडल्यार सरासरी त्रिज्याच्या पटींनी 2 pi लांबायेचो पातळ स्लॅब मेळटा, तातूंत दिल्ले उंचायेची आनी दाटाय आसता.
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