Questions
In Young's double slit experiment, if the two slits are illuminated with separate sources, no interference pattern is observed because
detailed solution
Correct option is A
In conventional light source, light comes from a large number of independent atoms, each atom emitting light for about 10–9 sec i.e. light emitted by an atom is essentially a pulse lasting for only 10–9 sec. Light coming out from two slits will have a fixed phase relationship only for 10-9 sec. Hence any interference pattern formed on the screen would last only for 10–9 sec, and then the pattern will change. The human eye can notice intensity changes which last at least for a tenth of a second and hence we will not be able to see any interference pattern. In stead due to rapid changes in the pattern, we will only observe a uniform intensity over the screen.Talk to our academic expert!
Similar Questions
An oil flowing on water seems coloured due to interference. For observing this effect, the approximate thickness of the oil film should be
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests