What is the refractive index of light in air ?

Description : 2. Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 x 108 ms-1. -Physics-10

Last Answer : Refractive index of a medium (nm) = Speed of light in vacuum/Speed of light in the medium Speed of light in vacuum (c) = 3 × 108 m/s Refractive index of glass (ng) = 1.50 Speed of light in the ... Speed of light in vacuum/ Refractive index of glass = c/ng =3 × 108/1.50 = 2x 108 ms-1.

The speed of light in water is of that in air. What is the refractive index of water? (a) 3/4 (b) 4/3 (c) 1/4 (d) 0

Description : The speed of light in water is of that in air. What is the refractive index of water? (a) 3/4 (b) 4/3 (c) 1/4 (d) 0

Last Answer : Ans:(b)

Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its (A) Molecular weight (B) Aromatics content (C) Both ‘a’ & ‘b’ (D) Neither ‘a’ nor ‘b’

Description : Refractive index of a petrofuel which is the ratio of velocity of light in air to its velocity in the petrofuel gives an indication if its (A) Molecular weight (B) Aromatics content (C) Both ‘a’ & ‘b’ (D) Neither ‘a’ nor ‘b’

Last Answer : (C) Both ‘a’ & ‘b

The refractive index of medium A is 1.5 and that of medium B is 1.33. If the speed of light in air is 3 x 108 m/s, what is the speed of light in medium A and B respectively? (a) 2 x 108 m/s and 1.33 x 108 m/s (b) 1.33 x 108 m/s and 2x 108 m/s (c) 2.25 x 108 m/s and 2 x 108 m/s (d) 2 x 108 m/s and 2.25 x 108 m/s

Description : The refractive index of medium A is 1.5 and that of medium B is 1.33. If the speed of light in air is 3 x 108 m/s, what is the speed of light in medium A and B respectively? (a) 2 x 108 m/s and 1.33 x 108 m/s (b) 1.33 ... 108 m/s (c) 2.25 x 108 m/s and 2 x 108 m/s (d) 2 x 108 m/s and 2.25 x 108 m/s

Last Answer : (d) 2 x 108 m/s and 2.25 x 108 m/s

A ray of light starting from air passes through medium A of refractive index 1.50, enters medium B of refractive index 1.33 and finally enters medium C of refractive index 2.42. If this ray emerges out in air from C, then for which of the following pairs of media the bending of light least? (a) air-A (b) A-B (c) B-C (d) C-air

Description : A ray of light starting from air passes through medium A of refractive index 1.50, enters medium B of refractive index 1.33 and finally enters medium C of refractive index 2.42. If this ray emerges out in air from C, then ... of media the bending of light least? (a) air-A (b) A-B (c) B-C (d) C-air

Last Answer : Answer : (b)

What is Refractive Index ? -Physics

Description : What is Refractive Index ? -Physics

Last Answer : Refractive index is a measure of how much speed of light changes when it enter the medium from air.

What is the refractive index through glass ?

Description : What is the refractive index through glass ?

Last Answer : Refractive index through glass 2.63 .

What is the refractive index through ice ?

Description : What is the refractive index through ice ?

Last Answer : Refractive index through ice is 1.30 .

What is the refractive index through diamond ?

Description : What is the refractive index through diamond ?

Last Answer : Diamond refractive index 2.42 .

What is refractive index ?

Description : What is refractive index ?

Last Answer : When the light of a certain color enters diagonally from one transparent medium to another, the constant number which is the ratio of the sine of the angle of incidence and the angle of refraction is called the relative refractive index of the second medium relative to the first medium .

What is the refractive index expressed by ?

Description : What is the refractive index expressed by ?

Last Answer : The symbol used to express the refractive index is η ( that)

What is meant by refractive index ?

Description : What is meant by refractive index ?

Last Answer : When the light of a certain color enters diagonally from one transparent medium to another, then the constant number which is the ratio of the sine of the angle of incidence and the angle of refraction is called the relative refractive index of the second medium relative to the first medium .

What are the two sources of refractive index ?

Description : What are the two sources of refractive index ?

Last Answer : Answer : The formulas are ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 2) For a pair of light of a certain medium and a certain color , the ratio of the sin ( sin) of the incident angle and the sin ( sin) of the refraction angle is always constant.

What is the refractive index of water ?

Description : What is the refractive index of water ?

Last Answer : The refractive index of water is 1.33

What is the refractive index expressed with ?

Last Answer : The refractive index is expressed by n .

What is refractive index ?

Last Answer : When a ray of light of a certain color enters from one medium to another, the ratio of the sine of the angle of incidence and the sine of the angle of refraction is a constant number , which is called the refractive index of the second medium relative to the first medium.

The part of the eye having the largest refractive index is - (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Description : The part of the eye having the largest refractive index is - (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Last Answer : (3) lens Explanation: Like a camera, the human eye uses a convex lens system to form a small, inverted, real image of an object in front of it. Lens is the part of the eye having the largest refractive index.

Which of the following colours has got the maximum refractive index for glass? (1) Blue (2) Green (3) Red (4) Indigo

Description : Which of the following colours has got the maximum refractive index for glass? (1) Blue (2) Green (3) Red (4) Indigo

Last Answer : (3) Red

The part of the eye having the larges refractive index is : (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Description : The part of the eye having the larges refractive index is : (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Last Answer : (3) lens Explanation: The cornea represents the strongest part of the refracting power of the eye, providing about 80% of the power of the system. The index of refraction of the cornea is about 1. ... into the watery fluid known as the aqueous humor which has an index of refraction of about 1.336.

Which physical quantity is measured in ‘siemens’? (1) Electric potential (2) Electrical conductance (3) Magnetic flux (4) Refractive index

Description : Which physical quantity is measured in ‘siemens’? (1) Electric potential (2) Electrical conductance (3) Magnetic flux (4) Refractive index

Last Answer : (2) Electrical conductance Explanation: The Siemens is the unit of electric conductance, electric susceptance and electric admittance in the International System of Units (SI).

The part of the eye having the larges refractive index is : (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Description : The part of the eye having the larges refractive index is : (1) cornea (2) aqueous humor (3) lens (4) vitreous humor

Last Answer : lens

6. “The refractive index of diamond is 2.42”. What is the meaning of this statement in relation to speed of light? [Delhi] -Chemistry-10

Description : 6. “The refractive index of diamond is 2.42”. What is the meaning of this statement in relation to speed of light? [Delhi] -Chemistry-10

Last Answer : Answer. hope this helps you

The refractive index of a given piece of transparent quartz is greatest for which light? -Do You Know?

Description : The refractive index of a given piece of transparent quartz is greatest for which light? -Do You Know?

Last Answer : answer:

The refractive index of a piece of transparent quartz is the greatest for which light? -Do You Know?

Description : The refractive index of a piece of transparent quartz is the greatest for which light? -Do You Know?

Last Answer : answer:

A ray of light incident at `49^(@)` on the face of an equilaternal prism passes symmetrically. Calculate the refractive index of the material of the p

Description : A ray of light incident at `49^(@)` on the face of an equilaternal prism passes symmetrically. Calculate the refractive index of the material of the p

Last Answer : A ray of light incident at `49^(@)` on the face of an equilaternal prism passes symmetrically. ... the refractive index of the material of the prism.

The refractive index of the material of a prism of `60^(@)` angle for yellow light is `sqrt(2)`. Calculate angle of minimum deviation, angle of incide

Description : The refractive index of the material of a prism of `60^(@)` angle for yellow light is `sqrt(2)`. Calculate angle of minimum deviation, angle of incide

Last Answer : The refractive index of the material of a prism of `60^(@)` angle for yellow light is ... deviation, angle of incidence and angle of refraction.

A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle `5^(@)`. What is the refractive index of the material of the

Description : A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle `5^(@)`. What is the refractive index of the material of the

Last Answer : A ray of light suffers a deviation of `3.2^(@)` on passing through a thin prism of angle ` ... is the refractive index of the material of the prism ?

What is the small index of refractive of the material of a right angled prism with equal sides for which a ray of light entering one of the sides norm

Description : What is the small index of refractive of the material of a right angled prism with equal sides for which a ray of light entering one of the sides norm

Last Answer : What is the small index of refractive of the material of a right angled prism with equal sides ... of the sides normally will be totally reflected ?

The refractive index of the material of a glass prism depends upon (a) The angle of the prism (b) The intensity of the incident light ray (c) The colour of the incident light ray (d) Size of the prism

Description : The refractive index of the material of a glass prism depends upon (a) The angle of the prism (b) The intensity of the incident light ray (c) The colour of the incident light ray (d) Size of the prism

Last Answer : Ans:(c)

The refractive index of a piece of transparent quartz is the greatest for which light?

Description : The refractive index of a piece of transparent quartz is the greatest for which light?

Last Answer : Violet light

The refractive index of a given piece of transparent quartz is greatest for which light?

Description : The refractive index of a given piece of transparent quartz is greatest for which light?

Last Answer : Violet light

Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of light is independent of wavelength and hence vaccum is a non- dispersive medium (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true.

Description : Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of ... of A. (c) A is true but R is false. (d) A is false but R is true.

Last Answer : (a) Both A and R are true and R is the correct explanation of A.

Pick up the correct statement from the following: (A) The refractive index of a medium varies according to the wavelength of the radiation, (B) The variation of the refractive index with wave length, is called dispersion, (C) The splitting of colours of white light by passing through a prism is caused due to dispersion (D) All of these

Description : Pick up the correct statement from the following: (A) The refractive index of a medium varies according to the wavelength of the radiation, (B) The variation of the refractive index with wave length, ... of white light by passing through a prism is caused due to dispersion (D) All of these

Last Answer : Answer: Option D

Light travels faster in a material with a lower refractive index. Therefore, light rays that travel a longer distance in a lower refractive index travel at a greater average velocity. What effect does this have on multimode graded-index fiber modal dispersion and bandwidth?

Description : Light travels faster in a material with a lower refractive index. Therefore, light rays that travel a longer distance in a lower refractive index travel at a greater average velocity. What effect does this have on multimode graded-index fiber modal dispersion and bandwidth?

Last Answer : Decreases the time difference between light rays, which reduces modal dispersion and increases fiber bandwidth.

Ratio of the velocity of propagation of a light ray in free space to the velocity of propagation of a light ray in free space in a given material. ∙ A. refractive index ∙ B. standing wave ratio ∙ C. velocity factor ∙ D. propagation velocity

Description : Ratio of the velocity of propagation of a light ray in free space to the velocity of propagation of a light ray in free space in a given material. ∙ A. refractive index ∙ B. standing wave ratio ∙ C. velocity factor ∙ D. propagation velocity

Last Answer : ∙ A. refractive index

The term critical angle describes ∙ A. the point at which light is refracted ∙ B. the point at which light becomes invisible ∙ C. the point at which light has gone from the refractive mode to the reflective mode ∙ D. the point at which light has crossed the boundary layers from one index to another

Description : The term critical angle describes ∙ A. the point at which light is refracted ∙ B. the point at which light becomes invisible ∙ C. the point at which light has gone from the refractive mode ... reflective mode ∙ D. the point at which light has crossed the boundary layers from one index to another

Last Answer : C. the point at which light has gone from the refractive mode to the reflective mode ∙

Optical cable testers are used for ∙ a. Checking refractive index ∙ b. Light power out of a fiber ∙ c. Non-calibrated light into a fiber

Description : Optical cable testers are used for ∙ a. Checking refractive index ∙ b. Light power out of a fiber ∙ c. Non-calibrated light into a fiber

Last Answer : b. Light power out of a fiber

Optical cable testers are used for ∙ a. Checking refractive index ∙ b. Light power out of a fiber ∙ c. Non-calibrated light into a fiber

Description : Optical cable testers are used for ∙ a. Checking refractive index ∙ b. Light power out of a fiber ∙ c. Non-calibrated light into a fiber

Last Answer : ∙ b. Light power out of a fiber

The ratio of the speed of light in a vacuum and the speed of light in the material used. ∙ a. S/N ratio ∙ b. Refractive index ∙ c. Intermodal dispersion ∙ d. Monomode ratio

Description : The ratio of the speed of light in a vacuum and the speed of light in the material used. ∙ a. S/N ratio ∙ b. Refractive index ∙ c. Intermodal dispersion ∙ d. Monomode ratio

Last Answer : b. Refractive index

The claddingwhichsurroundsthe fiber core a. is used to reduce optical interference b. is used to protect the fiber c. acts to help guide the light in the core d. ensures that the refractive index remains constant

Description : The claddingwhichsurroundsthe fiber core a. is used to reduce optical interference b. is used to protect the fiber c. acts to help guide the light in the core d. ensures that the refractive index remains constant

Last Answer : c. acts to help guide the light in the core

The termcritical angle describes a. the point at which light is refracted b. the point at which light becomes invisible c. the point at which light has gone from the refractive mode to the reflective mode d. the point at which light has crossed the boundary layers from one index to another

Description : The termcritical angle describes a. the point at which light is refracted b. the point at which light becomes invisible c. the point at which light has gone from the refractive mode to the reflective mode d. the point at which light has crossed the boundary layers from one index to another

Last Answer : c. the point at which light has gone from the refractive mode to the reflective mode

1. The refractive index of a given piece of transparent quartz is greatest for which light? 2. Where were the war criminals of the II World War put to trial? 3. Ali Akbar plays which musical instrument? 4. In which cotu does World’s highest urban density of population occurs? 5. In which year did Akbar defeat Rana Pratap in the Battle of Haldighati?

Description : 1. The refractive index of a given piece of transparent quartz is greatest for which light? 2. Where were the war criminals of the II World War put to trial? 3. Ali Akbar plays which musical instrument? 4. ... rivers fall in the Bay of Bengal? 20. Who is known as the Grand Old Man of India' ?

Last Answer : Answer : 1. Violet light 2. Peitersburg 3. Sarod 4. Tokyo 5. 1576 6. Medulla oblongata 7. Government of India Act, 1935 8. Acetic acid 9. Gulf of Khambat 10. Bijapur 11. The Bank Note ... Jaimal 16. Four lions 17. Ionospheric wave 18. Anuradha Roy 19. Ganga, Brahmaputra, Hooghly 20. Dadabhai Naoroji

The focal length of a plano-convex lens is 20 cm in air. Refractive index of glass is 1.5. Calculate (i) the radius of curvature of lens surface and (

Description : The focal length of a plano-convex lens is 20 cm in air. Refractive index of glass is 1.5. Calculate (i) the radius of curvature of lens surface and (

Last Answer : The focal length of a plano-convex lens is 20 cm in air. Refractive index of glass is 1.5. ... length when immersed in liquid of refractive index 1.6

A convex surface of radiys of curvature 20 cm separates air from glass of refractive index 1.5. Find the position and the nature of the image of a sma

Description : A convex surface of radiys of curvature 20 cm separates air from glass of refractive index 1.5. Find the position and the nature of the image of a sma

Last Answer : A convex surface of radiys of curvature 20 cm separates air from glass of refractive index 1.5. Find ... at 50 cm in front of the convex surface.

If critical angle for a material to air is `30^(@)`, the refractive index of the material will be

Description : If critical angle for a material to air is `30^(@)`, the refractive index of the material will be

Last Answer : If critical angle for a material to air is `30^(@)`, the refractive index of the material will be

What is the refractive index of light in air ?

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