MODERN PHYSICS

JEE Advanced 2015 Papers › General Physics questions › MODERN PHYSICS

A Li⁷ target is bombarded with a proton beam current of 10^-4A for 1 hour to produce Be⁷ with an activity of 1.8 *10⁸
disintegrations per second . assuming that one Be radioactive nucleus is produced by 1000 protons bobarding the Li target then

Half life of Be in units of log2 is ?

ANSWER = 12.5 * 10⁶ s in terms of log2

#Physics #General Physics

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7 Answers

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-05 09:27:16

ln2/(1.355 *10^8)

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questions ·2009-04-05 09:30:15

HOW TO DO IT ?

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-05 09:34:54

answer rite hai kya m nt sure :S

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-05 09:42:06

answer kya hai ?? options toh de diyo

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questions ·2009-04-05 09:43:47

answer toh galat hain yar

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-04-05 09:46:01

aacha as pass hoga toh bata :P

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questions ·2009-04-06 10:24:02

kisiko bhi aata hain kya ?

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

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° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω