AP EAPCET 2025 - 23rd May Evening Shift | Wave Optics Question 5 | Physics

In Young's double slit experiment, if the distance between the slits is increased to 3 times initial distance, then the ratio of initial and final fringe widths is

$9: 1$

$1: 9$

$1: 3$

$3: 1$

AP EAPCET 2025 - 23rd May Morning Shift

MCQ (Single Correct Answer)

-0

In Young's double slit experiment, the distance between the slits is 0.2 cm , the distance between the screen and the slits is 1 m . If the wavelength of light used in the experiment is $5000 \mathop {\rm{A}}\limits^{\rm{o}}$, then the distance between two consecutive dark fringes on the screen is

0.25 mm

0.26 mm

0.27 mm

0.28 mm

AP EAPCET 2025 - 22nd May Evening Shift

MCQ (Single Correct Answer)

-0

In Young's double slit experiment, the wavelength of monochromatic light is increased by $20 \%$ and the distance between the two slits is decreased by $25 \%$. If the initial fringe width is 0.3 mm , then the final fringe width is

0.72 mm

0.60 mm

0.16 mm

0.48 mm

AP EAPCET 2025 - 22nd May Morning Shift

MCQ (Single Correct Answer)

-0

An unpolarised beam of light incidents on a group of three polarising sheets arranged such that the angle between the axes of any two adjascent sheets is $30^{\circ}$. The ratio of the intensities of polarised light emerging from the second and third sheets is

$1: 1$

$2: 1$

$4: 3$

$3: 2$

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