What is the angle of incidence ?

What is the angle of incidence ?
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The angle that the incident ray produces along the perpendicular is called the incident angle.
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What is the angle of incidence ?

Last Answer : : The angle of incidence: - The angle that the incident ray produces immediately is called the angle of incidence.

What is the difference between the angle of inclination and the angle of incidence?

Description : What is the difference between the angle of inclination and the angle of incidence?

Last Answer : Need answer

What causes changes in the colours of the soap or oil films for the given beam of light? (a) Angle of incidence (b) Angle of reflection (c) Thickness of film (d) None of these

Description : What causes changes in the colours of the soap or oil films for the given beam of light? (a) Angle of incidence (b) Angle of reflection (c) Thickness of film (d) None of these

Last Answer : Ans:(c)

Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°

Description : Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°

Last Answer : (2) increases with the increase in angle Explanation: Reflected waves are simply those waves that are neither transmitted nor absorbed, but are reflected from the surface of the medium they encounter. The ... depends on the nature of the surface and the angle at which the wave strikes the surface.

Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°

Description : Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°

Last Answer : (2) increases with the increase in angle Explanation: Reflected waves are simply those waves that are neither transmitted nor absorbed, but are reflected from the surface of the medium they encounter. The ... depends on the nature of the surface and the angle at which the wave strikes the surface.

A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Description : A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Last Answer : (4) total internal reflection Explanation: If the angle of incidence of light ray in the denser medium is greater than the critical angle of the concerned media pair, the light is not at all reflected in to the rarer medium but is totally reflected. This is known as 'total internal reflection'.

If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°

Description : If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°

Last Answer : (2) 30° Explanation: The angle between the incident ray and the normal is known as the angle of inci dence. The angle between the reflected ray and the normal is known as the angle of reflection.

At a certain time, the MUF for transmission at an angle of incidence of 75° is 17 MHz. What is the critical frequency? A. 4.4 MHz B. 3.5 MHz C. 6.5 MHz D. 1.5 MHz

Description : At a certain time, the MUF for transmission at an angle of incidence of 75° is 17 MHz. What is the critical frequency? A. 4.4 MHz B. 3.5 MHz C. 6.5 MHz D. 1.5 MHz

Last Answer : A. 4.4 MHz

A radio signal moves from air to glass. The angle of incidence is 20°. Calculate the angle of refraction. The relative permittivity of the glass is 7.8. A. 7.8° B. 5.04° C. 6.04° D. 7.04°

Description : A radio signal moves from air to glass. The angle of incidence is 20°. Calculate the angle of refraction. The relative permittivity of the glass is 7.8. A. 7.8° B. 5.04° C. 6.04° D. 7.04°

Last Answer : D. 7.04°

Pick out the correct statement. (A) Higher is the temperature of the radiating body, higher is the wavelength of radiation (B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder (C) The wavelength corresponding to maximum mono-chromatic emissive power increases with rise in temperature (D) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence

Description : Pick out the correct statement. (A) Higher is the temperature of the radiating body, higher is the wavelength of radiation (B) Logarithmic mean area is used for calculating the heat flow rate ... ) Solid angle subtended by the finite surface at the radiating element is called the angle of incidence

Last Answer : (B) Logarithmic mean area is used for calculating the heat flow rate through a thick walled cylinder

What is the condition for total internal reflection? (a) Angle of incidence is less than to critical angle (b) Angle of incidence is equal to critical angle (c) Angle of incidence is greater than to critical angle (d) None of these

Description : What is the condition for total internal reflection? (a) Angle of incidence is less than to critical angle (b) Angle of incidence is equal to critical angle (c) Angle of incidence is greater than to critical angle (d) None of these

Last Answer : (c) Angle of incidence is greater than to critical angle

In the following diagram, the path of a ray of light passing through a glass prism is shown: In this diagram the angle of incidence, the angle of emergence and the angle of deviation respectively are (select the correct option): (a) X, R and T (b) Y, Q and T (c) X, Q and P (d) Y, Q and P

Description : In the following diagram, the path of a ray of light passing through a glass prism is shown: In this diagram the angle of incidence, the angle of emergence and the angle of deviation respectively are (select the correct option): (a) X, R and T (b) Y, Q and T (c) X, Q and P (d) Y, Q and P

Last Answer : (d) Y, Q and P

When a beam of light travels through media of two different densities, if theangle of incidence isgreater than the critical angle, _______ occurs. A) reflection B) refraction C) incidence D) criticism

Description : When a beam of light travels through media of two different densities, if theangle of incidence isgreater than the critical angle, _______ occurs. A) reflection B) refraction C) incidence D) criticism

Last Answer : reflection

The angle of incidence of a wave of a wave with angle of transmission 45 degree and the refractive indices of the two media given by 2 and 1.3 is a) 41.68 b) 61.86 c) 12.23 d) 27.89

Description : The angle of incidence of a wave of a wave with angle of transmission 45 degree and the refractive indices of the two media given by 2 and 1.3 is a) 41.68 b) 61.86 c) 12.23 d) 27.89

Last Answer : a) 41.68

The angle of incidence is equal to the angle of reflection for perfect reflection. State True/False. a) True b) False

Description : The angle of incidence is equal to the angle of reflection for perfect reflection. State True/False. a) True b) False

Last Answer : a) True

The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur. State True/False. a) True b) False

Description : The critical angle is defined as the angle of incidence at which the total internal reflection starts to occur. State True/False. a) True b) False

Last Answer : a) True

The Snell’s law can be derived from which type of incidence? a) Incidence angle b) Reflected angle c) Refracted angle d) Oblique incidence

Description : The Snell’s law can be derived from which type of incidence? a) Incidence angle b) Reflected angle c) Refracted angle d) Oblique incidence

Last Answer : d) Oblique incidence

The Brewster angle is the angle of a) Incidence b) Reflection c) Refraction d) Transmission

Description : The Brewster angle is the angle of a) Incidence b) Reflection c) Refraction d) Transmission

Last Answer : a) Incidence

Critical angle of electromagnetic radiation takes place if (A) Angle of incidence is equal to angle of refraction (B) Angle of incidence is greater than the angle of refraction (C) Angle of incidence is equal to 90° (D) Angle of refraction is equal to 90°

Description : Critical angle of electromagnetic radiation takes place if (A) Angle of incidence is equal to angle of refraction (B) Angle of incidence is greater than the angle of refraction (C) Angle of incidence is equal to 90° (D) Angle of refraction is equal to 90°

Last Answer : Answer: Option D

According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2); (A) The angle of incidence is equal to the angle of refraction (B) The angle of refraction r) is given by sin i (C) Both (a) and (b) (D) Neither (a) nor (b)

Description : According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index m2); (A) The angle of incidence is equal to the angle of refraction (B) The angle of ... r) is given by sin i (C) Both (a) and (b) (D) Neither (a) nor (b)

Last Answer : Answer: Option B

In case of reflection and refraction of electromagnetic radiation, (A) Angle of incidence = angle of refraction (B) Angle of incidence = angle of reflection (C) Angle of refraction = sum of the angles of incidence and refraction (D) All the above

Description : In case of reflection and refraction of electromagnetic radiation, (A) Angle of incidence = angle of refraction (B) Angle of incidence = angle of reflection (C) Angle of refraction = sum of the angles of incidence and refraction (D) All the above

Last Answer : Answer: Option B

Assuming the wall of a waveguide is perfectly flat, what is the angular relationship between the angle of incidence and the angle of reflection

Description : Assuming the wall of a waveguide is perfectly flat, what is the angular relationship between the angle of incidence and the angle of reflection

Last Answer : The angles are equal.

A light ray incident on the optical fiber core is propagated along the fiber. Is the angle of incidence of the light ray entering the fiber larger or smaller than the acceptance angle

Description : A light ray incident on the optical fiber core is propagated along the fiber. Is the angle of incidence of the light ray entering the fiber larger or smaller than the acceptance angle

Last Answer : Smaller.

In the core, the angle of incidence equals the angle of ____________________

Description : In the core, the angle of incidence equals the angle of ____________________

Last Answer : reflection

The maximum angle in which external light rays may strike the air/glass interface and still propagate down the fiber. ∙ A. Acceptance cone half-angle ∙ B. Acceptance cone ∙ C. Critical angle ∙ D. Angle of incidence

Description : The maximum angle in which external light rays may strike the air/glass interface and still propagate down the fiber. ∙ A. Acceptance cone half-angle ∙ B. Acceptance cone ∙ C. Critical angle ∙ D. Angle of incidence

Last Answer : A. Acceptance cone half-angle

The minimum angle of incidence at which the light ray may strike the interface of two media and result in an angle of refraction of 90 degrees or greater. ∙ A. optimum angle ∙ B. angle of refraction ∙ C. refracted angle ∙ D. critical angle

Description : The minimum angle of incidence at which the light ray may strike the interface of two media and result in an angle of refraction of 90 degrees or greater. ∙ A. optimum angle ∙ B. angle of refraction ∙ C. refracted angle ∙ D. critical angle

Last Answer : D. critical angle

Medium 1 is a glass (n1 = 1.5) and medium 2 is an ethyl alcohol (n2 = 1.36). For an angle of incidence of 30 degrees, determine the angle of refraction. ∙ A. 44.5 degrees ∙ B. 14.56 degrees ∙ C. 33.47 degrees ∙ D. 75 degrees

Description : Medium 1 is a glass (n1 = 1.5) and medium 2 is an ethyl alcohol (n2 = 1.36). For an angle of incidence of 30 degrees, determine the angle of refraction. ∙ A. 44.5 degrees ∙ B. 14.56 degrees ∙ C. 33.47 degrees ∙ D. 75 degrees

Last Answer : C. 33.47 degrees

It is the angle formed between the propagating ray and the normal after the ray has entered the second medium. ∙ A. angle of incidence ∙ B. angle of reflection ∙ C. propagation angle ∙ D. angle of refraction

Description : It is the angle formed between the propagating ray and the normal after the ray has entered the second medium. ∙ A. angle of incidence ∙ B. angle of reflection ∙ C. propagation angle ∙ D. angle of refraction

Last Answer : angle of reflection

Angle of incidence is the angle at which A. Total revenue line intersects the total cost line B. Total cost line intersects the variable cost line C. Variable cost line intersects fixed cost line D. Fixed cost line intersects total revenue line

Description : Angle of incidence is the angle at which A. Total revenue line intersects the total cost line B. Total cost line intersects the variable cost line C. Variable cost line intersects fixed cost line D. Fixed cost line intersects total revenue line

Last Answer : A. Total revenue line intersects the total cost line

The condition for minima in Fraunhofer diffraction for single slit is asinθ = mλWhat is ‘θ’? A. Angle of incidence of incident rays at the slit B. Angle at which diffracted rays strikes the screen C. Angle between slit and screen D. Angle of diffraction at which rays are diffracted at slit

Description : The condition for minima in Fraunhofer diffraction for single slit is asinθ = mλWhat is ‘θ’? A. Angle of incidence of incident rays at the slit B. Angle at which diffracted rays strikes the screen C. Angle between slit and screen D. Angle of diffraction at which rays are diffracted at slit

Last Answer : D. Angle of diffraction at which rays are diffracted at slit

On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light passing from water into air is 48.8 °. This means that all light rays with an angle of incidence greater than this angle will be A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted

Description : On a rainy day, small oil films on water show brilliant colors'. This is due to A. dispersion B. interference C. diffraction D. Polarization 49.The critical angle for a beam of light ... A. absorbed B. totally reflected C. Partially reflected and partially transmitted D. Totally transmitted

Last Answer : C. Partially reflected and partially transmitted

Light enters air from water. The angle of refraction will be A. Greater than the angle of incidence. B. Equal to the angle of incidence. C. Less than the angle of incidence. D. None of these

Description : Light enters air from water. The angle of refraction will be A. Greater than the angle of incidence. B. Equal to the angle of incidence. C. Less than the angle of incidence. D. None of these

Last Answer : C. Less than the angle of incidence.

The angle of incidence for a wave A. can be measured between the incident ray and the normal B. can be measured between the incident wave front and the boundary C. is equal to the angle of reflection D. all of the above

Description : The angle of incidence for a wave A. can be measured between the incident ray and the normal B. can be measured between the incident wave front and the boundary C. is equal to the angle of reflection D. all of the above

Last Answer : D. all of the above

If the incident ray falls directly on the normal. What will be the angle of incidence .? a ) 0 b)30 c)60 d)90

Description : If the incident ray falls directly on the normal. What will be the angle of incidence .? a ) 0 b)30 c)60 d)90

Last Answer : a ) 0

Assume that a ray of light passes from glass into air at an angle of incidence greater than zero degrees. Will the ray of light be bent toward or away from the normal as it passes into the air?

Description : Assume that a ray of light passes from glass into air at an angle of incidence greater than zero degrees. Will the ray of light be bent toward or away from the normal as it passes into the air?

Last Answer : ANSWER: AWAY FROM

When light is reflected from a surface, the angle of incidence is: w) 30 degrees x) equal to the angle of reflection y) 90 degrees z) 180 degrees

Description : When light is reflected from a surface, the angle of incidence is: w) 30 degrees x) equal to the angle of reflection y) 90 degrees z) 180 degrees

Last Answer : ANSWER: X -- EQUAL TO THE ANGLE OF REFLECTION

Assume a ray of light is incident on a smooth reflecting surface at an angle of incidence of 15 degrees to the normal. What is the angle between the incident ray and the reflected ray?

Description : Assume a ray of light is incident on a smooth reflecting surface at an angle of incidence of 15 degrees to the normal. What is the angle between the incident ray and the reflected ray?

Last Answer : ANSWER: 30 DEGREES

Optical fiber uses reflection to guide light through a channel, in which angle of incidence is ................. the critical angle. (A) equal to (B) less than (C) greater than (D) less than or equal to

Description : Optical fiber uses reflection to guide light through a channel, in which angle of incidence is ................. the critical angle. (A) equal to (B) less than (C) greater than (D) less than or equal to

Last Answer : (C) greater than

A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Description : A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Last Answer :  total internal reflection

Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45°

Description : Energy in reflected light : (1) does not depends on the angle of incidence (2) increases with the increase in angle (3) decreases with the increase in angle of incidence (4) becomes maximum for angle of incidence equal to 45° 

Last Answer : increases with the increase in angle

What does society need to do to stop the incidence of a biological parent's SO killing the non-biological children.

Description : What does society need to do to stop the incidence of a biological parent's SO killing the non-biological children.

Last Answer : This question is a subset of the eternal and persistent question involving children at risk: Is there any hope for reducing the staggering numbers of unfit parents?

Is the incidence of sexual child abuse on the rise, or is it just that a greater percentage are being reported?

Description : Is the incidence of sexual child abuse on the rise, or is it just that a greater percentage are being reported?

Last Answer : I think people just talk about it more now, I don’t think it is on the rise. Back about 25 years ago there were a lot of reports that wound up to be false, false memory. Some of that still happens, but for the most part I believe what is reported is true.

If Americans are overweight, and overweight by greater amounts, than people in most other nations, and many diseases and disorders are tied to obesity, is the incidence of those conditions lower in other countries?

Description : If Americans are overweight, and overweight by greater amounts, than people in most other nations, and many diseases and disorders are tied to obesity, is the incidence of those conditions lower in other countries?

Last Answer : Well, rates are calculated as number of events (say new cases of diabetes) over the average population during a certain period of time such as a month or a year - the average population is ... population but in our country, mostly everyone eats fast food whereas in theirs, almost no one does)

Are birthdays evenly distributed throughout the year or are there months with higher statistical incidence of birthdays?

Description : Are birthdays evenly distributed throughout the year or are there months with higher statistical incidence of birthdays?

Last Answer : August seems to have more births than other months. I’m guessing a lot of people are getting it on for New Year’s Eve.

Which continent has the highest incidence of yellow fever ?

Description : Which continent has the highest incidence of yellow fever ?

Last Answer : Yellow fever is most common in Africa.

Where in the world is there a high incidence of hurricanes?

Description : Where there are a lot of them.

Last Answer : East Coast of Asia and America ...

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Description : Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Last Answer : Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers: A. Methane B. Nitrous oxide C. Ozone D. ammonia.

Ozone depltion shall causes higher incidence of

Description : Ozone depltion shall causes higher incidence of

Last Answer : Ozone depltion shall causes higher incidence of A. skin cancers B. cataract C. decreased immunity D. all the above

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Description : Incidence of STDs and AIDS is highest I age group of

Last Answer : Incidence of STDs and AIDS is highest I age group of A. 9-14 years B. 15-24 years C. 25-35 years D. 35-50 years

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Description : Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Last Answer : Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers: A. Nitrous oxide B. Ozone C. Ammonia D. Methane