When crest of one wave falls over the trough of the other wave this phenomenon is known as________________?
A. polarization
B. constructive interference
C. destructive interference
D. diffraction
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
Which one of the following is nearly monochromatic light ? Read More »
Physical Optics, Physics Mcqs A. a cylindrical wave front
B. an elliptical wave front
C. a spherical wave front
D. a plane wave front
A. reflection
B. refraction
C. diffraction
D. polarization
Longitudinal waves do not exhibit _____________________? Read More »
Physical Optics, Physics Mcqs A. Hertz
B. Fresnel
C. Einstein
D. Plank
Photoelectric effect was given by ____________________? Read More »
Physical Optics, Physics Mcqs A. velocity
B. wavelength
C. amplitude
D. frequency
A. interference fringes only
B. diffraction fringes only
C. both interference and diffraction fringes
D. polirized frringes
In double slit experiment we observe _____________________? Read More »
Physical Optics, Physics Mcqs A. vibrating plane
B. polarization plane
C. diffraction plane
D. interference plane
Optical active crystals rotates the __________________? Read More »
Physical Optics, Physics Mcqs A. 100 watt
B. 200 watt
C. 300 watt
D. 60 watt
Which one of the following bulbs has the least resistance ? Read More »
Current Electricity, Physics Mcqs A. high power
B. high voltage
C. high current
D. over heating
A fuse is placed in series with the circuit to protect against__________________? Read More »
Current Electricity, Physics Mcqs