Question 1 :
Monochromatic light is refractive from air into the glass of refractive index $\mu$. The ratio of the wavelength of incident and refracted waves is
Question 2 :
If the angle between incident ray and normal is $\displaystyle { 30 }^{ o }$, choose the correct option:
Question 3 :
Out of the following which has the highest absolute refractive index?
Question 4 :
The angle between an incident ray and the mirror is $\displaystyle { 60 }^{ 0 }$. <span>Total angle turned by the ray of light is:</span>
Question 5 :
If the angle of incidence is twice the angle of refraction in a medium of refractive index $\mu$, then the angle of incidence is :
Question 6 :
When light passes from one medium to another, the physical quantity that remains unchanged is
Question 7 :
If the angle of incidence is equal to critical angle,then the angle of refractive is ( C ):
Question 8 :
Velocity of light in a medium is $1.5\times 10^8 m/s$. Its refractive index will be
Question 9 :
A ray of light travelling inside a rectangular glass block of refractive index $\sqrt2$ is incident on the glass-air surface at an angle o incidence of $45^o$.The refractive index of air is one. Under these conditions the ray will
Question 10 :
If a ray of light incident on a plane mirror is such that it makes an angle of $30^o$ with the mirror, then the angle of reflection is:
Question 11 :
The index of refraction for water is about $ \dfrac{4}{3} . $ What happens as a beam of light travels from air into water? <br><br>
Question 12 :
Refraction index of water is 4/3. Calculate speed of light in water.
Question 13 :
When light passes from air to glass, it experiences a change of:
Question 14 :
An incident ray makes an angle of ${ 90 }^{ \circ }$with the mirror surface. The angle of reflection for this ray is:
Question 15 :
A straight line graph is obtained by plotting sine of angle of incidence versus sine of angle of refraction. The slope of this graph represents :
Question 16 :
A light ray of frequency $\nu$ and wavelength $\lambda$ enters a liquid of refractive index $\dfrac{3}{2}$. The ray travels in the liquid with
Question 17 :
A light is travelling from air into a medium. Velocity of light in a medium is reduced to $0.75$ times the velocity in air. Assume that angle of incidence '$i$' is very small, the deviation of the ray is
Question 18 :
If the angle of incidence increases gradually then angle of refraction also_______. <br/>
Question 19 :
Light propagates $2\ cm$ distance in glass of refractive index $1.5$ in time $t_0$. In the same time $t_0$, light propagates a distance of $2.25\ cm$ in a medium. The refractive index of the medium is :
Question 20 : <p>If an incident light ray is reflected back along its original path by a plane mirror, then its angle of incidence is:</p>
Question 21 :
When a light ray moves from air to a transparent medium the angle of incidence and the angle of refraction are $45^{\circ}$ and $30^{\circ}$ respectively. Find the refractive index of this medium is
Question 22 :
A ray of light strikes a material's slab at an angle of incidence ${ 60 }^{ o }$. If the reflected and refracted rays are perpendicular to each other, the refractive index of the material is
Question 24 :
A ray of light is travelling through a medium of refractive index $\dfrac {1}{\sqrt {2}}$ with respect to air. When it is incident on the surface making an angle $45^{\circ}$ with the surface, which of the following will take place?
Question 25 :
The frequency of a light wave in a material is $2\times 10^{14}$Hz and wavelength is $5000\overset{o}{A}$. The refractive index of material will be
