Options:
- A. polarization
- B. constructive interference
- C. destructive interference
- D. diffraction
View Answer
C. destructive interference
Physics
Central spot of Newtons rings __________________?
Options:
- A. bright
- B. dark for large wavelength
- C. dark
- D. bright for large wavelength
View Answer
A. bright
In Young double slit experiment, if white light is used____________________?
Options:
- 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
View Answer
B. coloured fringes will be seen
The locus of all points in a medium having the same phase of vibration is called____________________?
Options:
- A. crest
- B. trough
- C. wavelength
- D. wave front
View Answer
D. wave front
In an interference pattern______________________?
Options:
- 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
View Answer
C. both dark and bright fringes are of equal width
Two sources of light are coherent if they emit rays of_______________?
Options:
- A. same wavelength
- B. same amplitude of vibration
- C. same wave length with constant phase difference
- D. same amplitude and wavelength
View Answer
C. same wave length with constant phase difference
The graphical representation of Ohms law is___________________?
Options:
- A. hyperbola
- B. ellipse
- C. parabola
- D. straight line
View Answer
D. straight line
The blue colour of the sky is due to___________________?
Options:
- A. diffraction
- B. reflection
- C. polarization
- D. scattering
View Answer
D. scattering
The velocity of light was determined accurately by_______________?
Options:
- A. Newton
- B. Michelson
- C. Huygen
- D. Young
View Answer
B. Michelson
The resistance of a conductor at absolute zero (OK) is________________?
Options:
- A. zero almost
- B. infinite almost
- C. no prediction at all
- D. may increase or decrease
View Answer
A. zero almost