EASY
12th Odisha Board
IMPORTANT
Earn 100

Describe the basic conditions for observing interference fringes on the screen.

Important Questions on Wave Optics and Interference

HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 3
What do you mean by the interference of light? Explain the formation of maxima and minima by applying the Principle of superposition.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 4
What is interference? Describe Young's experiment for demonstrating the phenomenon of interference of light and explain it by the wave theory. Derive the formula used.
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 5
Explain with necessary theory how you can determine the wavelength of sodium light using Young's double slit experiment.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 1
How long will light take in travelling a distance of 300 metres in glass. μglass=1.5 and velocity of light in vacuum c=3×108 m/s.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 2
Light takes 8 minutes 20 seconds to reach the earth from the sun. If the space between the sun and earth be filled with water, what time (in seconds) will light take to reach the earth. Given 
HARD
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 3
Two slits are separated by a distance of 0.03 cm. An interference pattern is produced at a screen 1.5 m away. The fourth bright fringe is at a distance of 1 cm from the central maximum. Determine the wavelength (in A°) of light used.
MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 4

Two straight narrow slits 0.30 mm apart are illuminated by a monochromatic source of wavelength 5.9×10-7 m. Fringes are obtained at a distance of 0.30 m from the slit. Find the width of the fringes in mm.

(Answer correct to two decimal places)

MEDIUM
12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 14 - Wave Optics and Interference>MODEL QUESTIONS>Q 5
White light is used to produce Young's fringes with double slits having a slit aperture of 0.04 cm. The distance between the slit and the screen on which fringes are formed is 140 cm and the distance between successive dark places in the fringe pattern is 1.7 mm. Find the average wavelength (in A°) of white light.