Physical Optics

A. black
B. purple
C. green
D. no scientific reasoning available

A. radio waves
B. ultraviolot rays
C. X-rays
D. sound waves

A. vibration in all direction
B. vibration in two mutually perpendicular directions
C. vibration take place in a direction perpendicular to the direction of propagation of light
D. no vibration at all

A. 4 x 10-10 m
B. 2 x 10-10 m
C. 0.02×10-10m
D. 20×10-10m

A. 5000 nm
B. 5000A
C. 500m
D. 2000um

A. diffraction
B. reflection
C. polarization
D. scattering

A. bright fringes are wider than dark fringes
B. dark fringes are wider than bright fringe
C. both dark and bright fringes are of equal width
D. central fringes are brighter than the outer fringes

A. alternate dark and bright fringes will be seen
B. coloured fringes will be seen
C. no interference fringes will be seen
D. impossible to predict

A. polarization
B. constructive interference
C. destructive interference
D. diffraction

A. light form fluorescent tube
B. light form neon lamp
C. light form sodium lamp
D. light form simple lamp