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JIPMER 2006

Exam: JIPMER
Year: 2006
Subject: Physics
Chapter: Ray Optics

JIPMER 2006 · Physics · Ray Optics

A light passing through air has wavelength 6000 Å . The wavelength...

A light passing through air has wavelength

6000 Å

. The wavelength when same ray passes through a glass slab of refractive index 1.5 will be :

Options

A $2000 Å$
B $4000 Å$
C $8000 Å$
D $1200 Å$

Correct answer

B. $4000 Å$

Step-by-step solution

When light ray passes through a glass slab, then new wavelength

\begin{aligned} \lambda^{\prime} & =\frac{\lambda}{\mu}=\frac{6000}{1.5} \\ & =4000 Å\end{aligned}

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