In Young's experiment fourth bright fringe produced by light of 5000 mathringA superposes on the fifth bright fringe of an unknown wavelength. The unknown wavelength is mathringA.

Question

In Young's experiment fourth bright fringe produced by light of 5000 mathringA superposes on the fifth bright fringe of an unknown wavelength. The unknown wavelength is mathringA. (A) 4000 (B) 6000 (C) 5000 (D) 8000

Tardigrade Admin · Accepted Answer

4 β1=5 β2 4 × 5000 (D/d)=5 × λ (D/d) λ=4000 mathringA

Q. In Young's experiment fourth bright fringe produced by light of $5000 \overset{˚}{A}$ superposes on the fifth bright fringe of an unknown wavelength. The unknown wavelength is _______ $\overset{˚}{A}$ .

4000

6000

5000

8000

$4 β_{1} = 5 β_{2}$
$4 \times 5000 \frac{D}{d} = 5 \times λ \frac{D}{d}$
$λ = 4000 \overset{˚}{A}$

Q. In Young's experiment fourth bright fringe produced by light of 5000A˚ superposes on the fifth bright fringe of an unknown wavelength. The unknown wavelength is _______A˚.