Snell's Law
Trending Questions
Q.
Snell’s law fails when the angle of incidence is
never fails
Q. 37. Light rays from a very small object emersed in water falls on bubble of radius . R . Assume object is very close to surface of bubble. Refractive index of water is 4/3. Use following formula and see the figure to find what type of image is formed and at what distance from centre of bubble?
Q. Q.3 a coin is placed at the bottom of a tank which is filled by two liquid layers as shown . the apparent depth of coin from top surface of normal viewing is
Q. the ratio of intensities of 1st and 2nd subsidary maxima in a diffraction pattern obtained by single slit is
Q. light us incident on a plane glass aurface at polarizing angle 54^°.the angle between the direction of incident ray and the refracted ray i
Q. Light from a denser medium 1 passes to a rarer medium 2. When the angle of incidence is θ, the partially reflected and refracted rays are mutually perpendicular. The critical angle will be
- sin−1(cot θ)
- sin−1(tan θ)
- sin−1(cos θ)
- sin−1(sec θ)
Q. Statement 1: A ray is incident from outside on a glass sphere surrounded by air as shown in figure. AB is the diameter of sphere. The given incident ray may suffer total internal reflection at the second interface.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1080124/original_q7.png)
Statement II: For a ray going from a denser to rarer medium, the ray may suffer total internal reflection.
For the given statements, choose the correct option:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1080124/original_q7.png)
Statement II: For a ray going from a denser to rarer medium, the ray may suffer total internal reflection.
For the given statements, choose the correct option:
- Statement I and II both are true and II is a correct explanation of 1.
- Statement I and II both are true, but II is not a correct explanation of I
- Statement I is false, but statement II is true
- Statement I and statement II both are false.
Q. A solid glass sphere with radius 1 m and an index of refraction 1.5 is silvered over one hemisphere. A small object is located on the axis of the sphere at a distance 2 m to the left of the vertex of the unsilvered hemisphere. The position of final image after all refractions and reflections have taken place is
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1101440/original_original_1.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1101440/original_original_1.png)
- at vertex of silvered face
- at vertex of unsilvered face
- at centre of curvature
- at object itself
Q. White light is incident normally on a glass slab. Inside the glass slab (a) Red light travels faster than other colours b) Violet light travels faster than other colours( c) Yellow light travels faster than other colours (d) All colours travel with the same speed\lbrack KCET 2012\rbrack
Q. Explain how an opaque object can be made translucent and what are hot and cold sources of light?
Q. A small bulb is placed at the bottom of a tank containing water to adepth of 80cm. What is the area of the surface of water throughwhich light from the bulb can emerge out? Refractive index of wateris 1.33. (Consider the bulb to be a point source.)
Q. In Young's double slit experiment, the two slits are illuminated by a monochromatic source of light and interference fringes are observed on a screen placed in front of the slits. If a thin glass plate is placed in front of one of the slits, which of the following will change?
- fringe width
- angular width of central bright fringe
- position of central bright fringe
- All of the above
Q. 62.What is the relation between angle of incidence and lateral displacement in a glass slab?
Q. When light is refracted, which of the following does not change?
- Wavelength
- Frequency
- Velocity
- Amplitude
Q. If the velocity of light c , planks constant h and gravitational constant G are taken as the fundamental units of a system, the dimensional formula of force in the system would be
Q. A ray of light is incident on glass slab making an angle of incidence sin−1(√32). What will be the angle of refraction in glass of refractive index 1.5?
- 25o17′
- 40o18′
- 35o16′
- 24o49′
Q. A light of wavelength 6400 armstrong is incident normally on a glass slab of thickness 5 cm its wavelength in glass is 4000 armstrong the beam of light takes the same time to travel from the source to the incident surface as it takes to travel through the glass slab Calculate the dis†an ce of source from the incident surfac
Q. 62. The speed of light in water is 2.25 into 10 ki power 8 metre per second refractive index of water is 4 by 3 then find the speed of light in vacuum
Q. Due to refraction -
- Image in the plane mirror is clear.
- A glass sphere appears attractive.
- Speed of light is constant in all medium.
- Polished black surface shine.
Q. 46. If refractive index of water is 1.33, then calculate the speed of light in water?
Q. Light is incident at angle θ on one plane end of a transparent cylindrical rod of R.l.n. Determine the least value of n so that the light entering the rod does not come out of the curved surface of the rod irrespective of the value of θ.
Q. In the adjacent Figure 28.75, sinisinr is
![156316_a90e5a183f804de29e32bc80a078c133.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/156316_a90e5a183f804de29e32bc80a078c133.png)
![156316_a90e5a183f804de29e32bc80a078c133.png](https://search-static.byjusweb.com/question-images/toppr_ext/questions/156316_a90e5a183f804de29e32bc80a078c133.png)
- is equal to (μ′)2μ.μ0
- is equal to μ′μ0
- is equal to μ.μ0(μ′)2
- cannot be calculated
Q. For a projection, (range)2 is 48 times of (maximum height)2 obtained. Find angle projection.
Q. "Light added to light can produce darkness". Write the name of this phenomenon.
Q. Derive the relation between u, v and R for a convex spherical surface, when ray of light is going from rarer to denser medium. Draw appropriate diagram.
Q. For the given incident ray as shown in the figure, the condition for total internal reflection will be satisfied if the refractive index of the block is greater than
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1121716/original_1.png)
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1121716/original_1.png)
- √3+12
- √52
- √72
- √32
Q. Why is speed of light independent of wavelength in vacuum but not in other media?
Q. A body is projected at such angle that the horizontal range is three times the greatest height. The angle of projection is:
Q. What % of speed of light in air as compare to speed of light in vaccum
Q.
for what angle of incidence , the lateral siaplcement is maximum ? can it be zero