Wave Optics

Doubled

reduced to half

same

quadrupled

constructive interference

steady interference

diffraction of light

destructive interference

light consists of waves

light consists of particles

light consists of neither particles nor waves

light consists of both particles and waves.

$i={90}^{\circ}$ then $r=0^{\circ}$

$i=0^{\circ}$ then $r=0^{\circ}$

$i=0^{\circ}$ then $r={90}^{\circ}$

none of these

is less than that of a spherical wavefront

is infinity

is equal to the radius of curvature of a spherical wavefront

is slightly more than that of a cylindrical wavefront

only longitudinal mechanical waves

only transverse mechanical waves

only electromagnetic waves

All of these

${90}^{\circ}-i$

$\left| i-r \right|$

$90-r$

${180}^{\circ}-2i$

$\Delta x=\lambda,3\lambda,5\lambda\ldots\ldots$.

$\Delta x=0,\lambda,2\lambda,3,\ldots\ldots\ldots$

$\Delta x=\dfrac{\lambda}{2},\dfrac{3\lambda}{2},\dfrac{5\lambda}{2}\ldots\ldots$

$\Delta x=\dfrac{\lambda}{4},\dfrac{3\lambda}{4},\dfrac{5\lambda}{4}\ldots\ldots$

refraction

reflection

diffraction

polarisation

an electrical field of constant magnitude

a magnetic field of constant magnitude

changing electric and magnetic fields

electric and magnetic fields of constant magnitude

spherical wave front

plane wave front

cylindrical wave front

all of these

red light

yellow light

green light

ultraviolet light

$n \cdot \dfrac{\pi}{2}$

$(2 n+1) \pi$

$(2 n-1) \pi$

$(2 n-1) \dfrac{\pi}{2}$

width of the slit

wavelength of light used.

ratio of wavelength and slit width.

distance of the slit from the screen.

is decreased by $(\mathrm{n}-1) \mathrm{t}$.

is increased by $(\mathrm{n}+1) \mathrm{t}$.

is not affected.

is increased by $(\mathrm{n}-1) \mathrm{t}$.