In a young's double slit experiment, if the slits are of unequal width the positions of minimum intensity will not be completely dark.
119) In a young's double slit experiment, if the slits are of unequal width
Answer is:
the positions of minimum intensity will not be completely dark
Explanation:
Related Optics MCQ with Answers
Answer is:
2.4??108ms?1
Explanation:
use v=c/n v=f?
Answer is:
442 nm
Explanation:
use n= ?1/?2
Answer is:
1.55
Explanation:
If we assume that the refractive index (n) of quartz is stated with respect to air, we can argue as follows: refractive index is the ratio of the speed of light in air to the speed of light in quartz. Since wavelength is proportional to speed, the wavelength in a medium (in this case quartz) is inversely proportional to the refractive index of the material. So wavelength in quartz = 355/1.55 = 229nm The question tells us the speed of light in quartz, this enables us to determine the refractive index (n), and check whether the information given in the question is internally consistent. Assuming that the speed of light in vacuum (c) is not significantly different from that in air we can write: n = c/1.94*10^8 = 1.545, which, to 2pds,
Answer is:
550nm
Explanation:
If we assume that the refractive index (n) of quartz is stated with respect to air, we can argue as follows: refractive index is the ratio of the speed of light in air to the speed of light in quartz. Since wavelength is proportional to speed, the wavelength in a medium (in this case quartz) is inversely proportional to the refractive index of the material. So wavelength in quartz = 355/1.55 = 229nm The question tells us the speed of light in quartz, this enables us to determine the refractive index (n), and check whether the information given in the question is internally consistent. Assuming that the speed of light in vacuum (c) is not significantly different from that in air we can write: n = c/1.94*10^8 = 1.545, which, to 2pds,