SATHEE: General Physics Question 11

General Physics Question 11

Question 11

The energy of a system as a function of time $t$ is given as $E (t) = A^{2} \exp (- α t)$ , where $α = 0.2 s^{- 1}$ . The measurement of $A$ has an error of $1.25$ . If the error in the measurement of time is $1.50$ , the percentage error in the value of $E (t)$ at $t = 5 s$ is

(2015 Adv.)

is $0.5 mm$ and the 25th division coincides with the main scale line?

(2016 Main) (a) $0.75 mm$ (b) $0.80 mm$ (c) $0.70 mm$ (d) $0.50 mm$

Show Answer

Answer:

Correct Answer: 11. (a)

Solution:

Length of air column in resonance is odd integer multiple of $λ / 4$ . The prongs of the tuning fork are kept in the vertical plane.

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General Physics Question 11

Question 11

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