Home
Class 12
PHYSICS
Light of wavelengthlambda = 500 nm falls...

Light of wavelength`lambda = 500 nm` falls on two narrow slits placed a distance d = ` 50 xx 10^-4` cm
apart, at an angle `phi= 30^@` relative to the slits as shown in figure. On the lower slit a transparent slab of thickness 0.1 mm and refractive index `3/2` is placed. The interference pattern is observed at a distance D=2m from the slits. Then, calculate

(a) position of the central maxima.
(b) the order of maxima at point C of screen .
(c)how many fringes will pass C, if we remove the transparent slab from the lower slit?

A

50

B

40

C

100

D

80

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WAVE OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I) (INTERFERENCE & YDSE) Level - II (ADVANCED) Matrix Match Type Questions|2 Videos

  • WAVE OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I) (INTERFERENCE & YDSE) Level - II (ADVANCED) Level - II (straight objective Type Questions) Integer Type Questions|1 Videos

  • WAVE OPTICS

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I) (INTERFERENCE & YDSE) Level - II (ADVANCED) More than one correct answer type questions|4 Videos

  • WAVE MOTION AND SOUND

    AAKASH SERIES|Exercise PROBLEMS (LEVEL - II)|97 Videos

  • WAVES

    AAKASH SERIES|Exercise EXERCISE-III (Doppler effect :)|15 Videos

Similar Questions

Explore conceptually related problems

In a Young's double slit experiment, (slit distance d) monochromatic light of wavelength lambda is used and the fringe pattern observed at a distance D from the slits. The angular position of the bright fringes are

Two slits in YDSE are placed 1 mm from each other. Interference pattern is observed on a screen placed 1m from the plane of slits. What is the angular fringe width for a light of wavelength 400 nm

Two slits in YDSE are placed 2 millimeter from each other. Interference pattern is observed on a screen placed 2 m from the plane of slits. What is the fringe width for a light of wavelength 400 nm?

A transparent glass plate of thickness 0.5 mm and refractive index 1.5 is placed infront of one of the slits in a double slit experiment. If the wavelength of light used is 6000 A^(@) , the ratio of maximum to minimum intensity in the interference pattern is 25/4. Then the ratio of light intensity transmitted to incident on thin transparent glass plate is

A monochromatic light of lambda = 5000 Å is incident on two identical slits separated by a distance of 5 xx 10^(-4) m. The interference pattern is seen on a screen placed at a distance of 1 m from the plane of slits. A thin glass plate of thickness 1.5 xx 10^(-6) m and refractive index mu = 1.5 is placed between one of the slits and the screen . Find the intensity at the center of the screen.

Light of wavelength lambda=5000Å falls normally on a narrow slit. A screen is placed at a distance of 1m from the slit and perpendicular to the direction of light. The first minima of the diffraction pattern is situated at 5mm from the centre of central maximum. The width of the slit is

A young's double slit apporatus is immersed in a liquid of refractive index 1.33.It has slit separation of 1 mm and interference pattern is observed on the screen at a distance 1.33 m from plane of slits.The wavelength in air is 6300 Å Calculate the fringe width.

A YDSE is performed in a medium of refractive index 4 // 3 , A light of 600 nm wavelength is falling on the slits having 0.45 nm separation . The lower slit S_(2) is covered b a thin glass plate of thickness 10.4 mm and refractive index 1.5. The interference pattern is observed on a screen placed 1.5 m from the slits as shown in figure. (All the wavelengths in this problem are for the given medium of refractive index 4 // 3 , ignore absorption.) Find the light intensity at point O relative t maximum fringe intensity.

A beam of light of wavelength 400 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 2 m away from the slit. It is observed that 2nd order minima occurs at a distance of 2 mm from the position of central maxima. Find the width of the slit.

Light of wavelength 6 xx10^(-5) cm falls on screen at a distance of 100 cm from a narrow slit. Find the width of the slit if the first minima lies 1mm on either side of the central maximum