Laser light of wavelength `630 nm` incident on a pair of slits produces an interference pattern where bright fringes are separated by `8.1 mm`. Another light produces the interference pattern, where the bright fringes are separated by `7.2 mm`. Calculate the wavelength of second light.
Text Solution
AI Generated Solution
To solve the problem, we will use the formula for the fringe separation in a double-slit interference pattern, which is given by:
\[
y = \frac{\lambda D}{d}
\]
where:
- \( y \) = fringe separation (distance between bright fringes)
...
Topper's Solved these Questions
OPTICS
PRADEEP|Exercise Very short answer question|5 Videos
OPTICS
PRADEEP|Exercise very short answer questions|1 Videos
Laser light of wavelength 630 mm incident on a pair of slits produces as interference pattern in which the bright fringes are separated by 8.1 mm. A second light produces an interference pattern in which the fringes are separated by 7.2 mm. Calculate the wavelength of the second light.
Laser light of wavelength 630 nm incident on a pair of slits produces an interference pattern in which the bright fringes are separated by 8.1 mm. A second laser light produces an interference pattern in which the fringes are separated by 7.2 mm. Calculate the wavelength of the second light.
Laser light of wavelength 640 nm incident on a pair of slits produces an interference patterns in which the bright fringes are separated by 8.1 mm. A second light produces an interference pattern in which the fringes and separated by 7.2 mm. Calculate the wavelength of the second light.
Laser light of wave length 600 nm incident on a pair of slits produces an interference pattern in which the bright fringes are separated by 8mm. A second light produces an interference pattern in which the fringes are separated by 12 mm. Calculate the wavelength of the second light.
In Young's double-slit experiment, monochromatic light of wavelength 630 nm illuminates the pair of slits prodcues an interference pattern in which two consecutive bright fringes are separated by 8.1 mm. Another source of monochromatic light produces the interference pattern in which the two consecutive bright fringes are separated by 7.2 mm. Find the wavelength of light for the second source. What is the effect on the interference fringes if the monochromatic source is replaced by a source of white light?
Coherent light from a sodium-vapour lamp is passed through a filter that blocks everything except for light of a single wavelength. It then falls on two slits separated by 0.460 mm. In the resulting interference pattern on a screen 2.20m away, adjacent bright fringes are separated by 2.82 mm. What is the wavelength ?
