COMEDK 2023 Morning Shift | Wave Optics Question 1 | Physics

In Young's double slit interference experiment, using two coherent waves of different amplitudes, the intensities ratio between bright and dark fringes is 3 . Then, the value of the ratio of the amplitudes of the wave that arrive there is

$$\left(\frac{\sqrt{3}+1}{\sqrt{3}-1}\right)$$

$$\left(\frac{\sqrt{3}-1}{\sqrt{3}+1}\right)$$

$$\sqrt{3}: 1$$

$$1: \sqrt{3}$$

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

-0

In Young's double slit experiment, the ratio of maximum and minimum intensities in the fringe system is $$9: 1$$. The ratio of amplitudes of coherent sources is

$$9: 1$$

$$3: 1$$

$$2: 1$$

$$1: 1$$

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

In the young's double slit experiment the fringe width of the interference pattern is found to be $$3.2 \times 10^{-4} \mathrm{~m}$$, when the light of wave length $$6400^{\circ} \mathrm{A}$$ is used. What will be change in fringe width if the light is replaced with a light of wave length $$4800^{\circ} \mathrm{A}$$

$$2.4 \times 10^{-4} \mathrm{~m}$$

$$1.6 \times 10^{-4} \mathrm{~m}$$

$$0.8 \times 10^{-4} \mathrm{~m}$$

$$5.6 \times 10^{-4} \mathrm{~m}$$

COMEDK 2023 Evening Shift

MCQ (Single Correct Answer)

-0

A light having wavelength $$6400^{\circ} \mathrm{A}$$ is incident normally on a slit of width $$2 \mathrm{~mm}$$. Then the linear width of the central maximum on the screen kept $$2 \mathrm{~m}$$ from the slit is :

2.4 cm

1.28 mm

1.28 cm

2.4 mm

COMEDK Subjects