wave-optics

Related Questions

• The dual nature of light is exhibited by

  ---

• A rocket is moving away from the earth at a speed of $6 \times {10^7}m/s$. The rocket has blue light in it. What will be the wavelength of light recorded by an observer on the earth (wavelength of blue light = 4600 Å)

  ---

• Two sources give interference pattern which is observed on a screen, D distance apart from the sources. The fringe width is 2w. If the distance D is now doubled, the fringe width will

  ---

• A zone plate of focal length $60\,cm,$ behaves as a convex lens, If wavelength of incident light is $6000\,\,{\AA},$ then radius of first half period zone will be

  ---

• A rocket is going away from the earth at a speed 0.2c, where c = speed of light. It emits a signal of frequency $4 \times {10^7}Hz$. What will be the frequency observed by an observer on the earth

  ---