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Dependence of Resistance on Temperature

In a biprism ...

Question

In a biprism experiment, the distance of 20 th bright bandfrom the center of the interference pattern is 8 $m m$ . The distance of 30th bright band from the center is

A

11.8 m m

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B

12

m m

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C

14

m m

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D

16

m m

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Solution

The correct option is A $11.8 m m$
Given
$\begin{matrix} 20 β = 8 m m β = \frac{8}{20} N o w, 30 t h max i m a = 30 β = \frac{30 \times β}{20} = 12 m m 30 t h min i m a = \frac{(2 (30) - 1)}{2} β = \frac{59}{2} β = \frac{59}{2} \times \frac{8}{20} = 11.8 m m H e n c e, o p t i o n A i s t h e c o r r e c t a n s w e r . \end{matrix}$

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