Wave Optics Test

A beam of light consisting of two wavelengths, 650 nm and 520 nm, is used to obtain interference fringes in a Young ’s double-slit experiment. What is the least distance from the central maximum where the bright fringes due to both the wavelengths coincide?

Question 1/10

the bending of light around an obstacle

the bending of light in a medium

the bonding of light to an obstacle

None of the above

Question 2/10

spherical

plane

conical

hyperboloid

Question 3/10

1.37 mm

1.27 mm

1.47 mm

9.75 mm

Question 4/10

472nm

442nm

462nm

452nm

Question 5/10

locus of all adjacent points at which the Electric field is the same

locus of all adjacent points at which the phase of vibration of a physical quantity associated with the wave is the same

series of points on the wave with same amplitude

series of points on the wave with same frequency

Question 6/10

1.66 mm

1.86 mm

1.76 mm

1.56 mm

Question 7/10

41.5∘

45.5∘

43.5∘

65.9∘

Question 8/10

plane

spherical

hyperboloid

conical

Question 9/10

lack of sharp boundary when a point source of light illuminates a straightedge

The rainbow fringes of an oil slick on water

fringes observed from a large number of parallel slits

A bulb filament viewed through two blades held so that the edges form a slit

Question 10/10

each point on a wave front is a source of secondary waves

each point on a wave front is a sink of secondary waves

No point on a wave front is a source of secondary waves

None of the above

41.5^∘

45.5^∘

43.5^∘

65.9^∘