Physical Optics

Interference of light occurs because of ...

The bending or spreading of light as it passes through a narrow slit is called ...

In Young's double-slit experiment, the spacing between two consecutive bright fringes is given by ...

The phenomenon of polarization shows that light is a ... wave.

Constructive interference (bright fringe) occurs when the path difference of two waves equals ...

A diffraction grating works on the principle of ...

A double slit with separation $0.3\text{mm}$ is illuminated by $600\text{nm}$ light with the screen $1\text{m}$ away. The spacing between consecutive bright fringes is ...

In Young's experiment, the distance from the central bright fringe to the second bright fringe is $4\text{mm}$. The distance to the sixth bright fringe is ...

A diffraction grating with $5,000$ lines per cm is illuminated by $500\text{nm}$ light. The first-order diffraction angle is ...

Destructive interference (dark fringe) occurs when the path difference of two waves equals ...

Young's experiment with slit separation $0.5\text{mm}$ and screen distance $2\text{m}$ gives a fringe spacing of $2.4\text{mm}$. The wavelength is ...

Light of $600\text{nm}$ passes through a double slit $d=0.6\text{mm}$ with the screen $1.5\text{m}$ away. The distance of the third-order bright fringe from the center is ...

In single-slit diffraction, if the slit width is made smaller, the resulting diffraction pattern becomes ...

A device that can polarize light is ...

A grating with $2,000$ lines per cm is illuminated by $600\text{nm}$ light. The maximum observable order is ...

A thin oil film $(n=1.4)$ on water is illuminated by $560\text{nm}$ light at normal incidence. The minimum thickness for constructive interference is ...

The Brewster angle for light reflected from a medium of refractive index $1.5$ is ...

Two slits separated by $0.4\text{mm}$ are illuminated by $640\text{nm}$ light with the screen $2\text{m}$ away. The distance between the first-order and fourth-order bright fringes is ...

A grating with $10,000$ lines per cm is illuminated by $500\text{nm}$ light. The maximum observable order is ...

Polarized light of intensity $I_0$ passes through a second polarizer whose axis makes an angle of $60^{\circ }$ with the polarization direction. The intensity after the polarizer is ...