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Questions

Physics

In the experiment for the determination of the speed of sound in air using the resonance column method, the length of the air column that resonates in the fundamental mode, with a tuning fork is 0.1 m. When this length is changed to 0.35 m, the same tuning fork resonates with the first overtone. Calculate the end correction.

(a)

0.012 m

(b)

0.025 m

(c)

0.05 m

(d)

0.024 m

Chemistry

The correct order of equivalent conductance at infinite dilution of LiCl, NaCl and KCl is

(a)	LiCl > NaCl > KCl	(b)	KCl > NaCl > LiCl
(c)	NaCl > KCl > LiCl	(d)	LiCl > KCl > NaCl

Mathematics

If f (x) is differentiable and

(a)

2/5

(b)

-5/2

(c)

1

(d)

5/2

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