2. A nearsighted person with far point 88cm is looking for a spectacle lens. (Assume the lens is held 2 cm away from the eye.) a) What power of spectacle lens is needed? b) What type of lens is this?

Q: Please give brief introduction about REFRACTION OF LIGHT BY A CONCAVE LENS experiment

A:

Q: There is invariably a phase shift when light reflects from a surface such that the index of…

A: Answer:) option(d) < index of the material beyond the reflecting surface

Q: Light needs a medium to be transported from source to destination.       True   Or   False

A: Wave is classified into two types. mechanical wave  nonmechanical wave mechanical wave requires…

Q: Diffraction explains transmit images over long distances the spreading of light waves from a door…

A: Diffraction is the phenomenon by virtue of which waves will spread around obstacles. Diffraction may…

Q: Snell's law describes. .. A. magnification. B. reflection. C. refraction. D. Huygen's wavelets.

A: Concept used: Refraction is the process in which light travels from one medium to another.…

Q: Optical fiber works on the principle of   A) Scattering B) interference C) total internal reflection…

A: Using Total internal reflection, Optical fiber is working.

Q: Why do some objects only diffract around certain obstacles?

A: The phenomenon of diffraction is the bending of light around small (smaller than the wavelength of…

Q: Solve for the speed of light in each of the following materials:   Air Glass Water

A: The speed of light is given as c=3×108 m/s

Q: How is the law of reflection and refraction applied in health science?

A:

Q: To be internally reflected, the light must start in which material? in water in light flint in any…

A: Give are the options, we need to find out the phenomenon of total internal reflection will occur if…

Q: velocity). Use the accompanying table of indices of refraction to order them. Medium n Benzene 1.501…

A: Solution: Given: c = speed of light = 2.998 x 108 m/s nBenzene = refractive index of Benzene = 1.501…

Q: 3.4, 3.5 and 3.6

A:

Q: complete the analogy? Bending of light is to refraction:  separation of light is to ________*…

A: Separation of light in its different different wavelengths is known as dispersion of light.…

Q: In which of the following medium the speed of light is maximum? Air Water Oil Alcohol

A: Speed of light in medium is given by, v=cn, n is refractive index of medium

Q: The bending of light as it travels from one medium to another is called:

A: Solution: Step1 - Here we will understand the concept that will be used to solve the question. As we…

Q: how to verify the law of refraction

A: Figure below shows the case of refraction

Q: 109. Monochromatic light passes through materials a, b, and c. Rank the materials according to index…

A: We have been given three different mediums a, b & c with corresponding refractive index μa, μb…

Q: Light travels faster in    options:   dense air.   same in each.   vacuum   thin air.

A: Answer - Light travels faster in vacuum

Q: What is the basic definition of refraction? The blocking of specific waves of light responsible for…

A:

Q: Two in-phase sources emit electromagnetic waves of equal wavelength and intensity. At the position…

A:

Q: dentify what properties and concepts of mirrors and lenses are applied in these optical in each of…

A:

Q: An acoustical pulse travels to the right inside a hollow tube at speed v = 100 m/s. At t = 0 the…

A:

Q: Why  is the lens on a good –quality camera coated  with a thin film?

A:

Q: what do reflection and refraction have in common? what is different about the 2?

A: Reflection:  The bouncing back of light or sound waves from a surface called reflection.…

Q: Which of the following is NOT a property of 10. sound waves? Diffraction Reflection A Refraction…

A: Sound waves have a longitudinal nature.  So option D is correct.

Q: 9. When a light ray passes from a material of higher index of refraction to a material with lower…

A: If the light from the any of (higher or lower ) refractive index of material get travel to other…

Q: What color light is transmitted through a piece of red glass?

A: When an electromagnetic waves incident on an object that composes all the seven color then all the…

Q: The speed of light in ruby is 1.2 × 10° ''/s. Calculate ruby's index of refraction. 0.25 0.28 0.40…

A: solution is given as

Q: 18) A light ray bends when it goes from one medium to another because of   a Interference   b…

A: A light ray bends when it goes from one medium to another because of

Q: A beam of light travels from diamond (n 2.4 ) to glass at a 28° angle to the normal of the…

A:

Q: Reflection and Refraction problem

A: (a) The trajectory of the light ray is in the following diagram,

Q: Does refraction make a swimming pool seem deeper or shallower? Explain

A: yes refraction make a swimming pool seem deeper or shallower.

Q: 18- In which of the following parts of the complete oscillation cycle of the oscillator, the current…

A: Given: Four conditions of oscillator are there.

Q: Prism is one of the optical devices you get

A: It is required to see which phenomenon is followed by a prism.

Q: Andy realized that a particular object was always a chair, regardless of the angle he viewedit from.…

A: OTHERS

Q: Which of the following wave phenomena can explain how we see images when wearing glasses, using a…

A: When the rays of light passes from one transparent medium to another, the path of the rays is…

Q: 36) An oil spill produces a rainbow of colors because: As the temperature of the oil increases, the…

A: Given: An oil spill produces a rainbow of colors. To find: Reason of rainbow colors from oil spill