3. A farsighted person with near point 1,7 m wants to clearly see an object 25cm away. (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: Why is light behaving important? Give some applications.

A: Importance of dual behavior of light:     ;

Q: You can hear around corners, but you can't see around corners. Why?

A: Waves are capable of bending around obstacles. This effect is called diffraction.   Light consists…

Q: Light normally travels in straight lines, but it “bends” in an optical fiber. Explain.

A: Given:  Light bends in the optical fibre

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: If a person covers the top half of camera lens, what effect does this have on the pictures taken?

A: If we cover the half of the lens, then we get a fainter image or an image with less itensity of…

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: (3) Consider a force given by F = xyâ and the work done by this force on a mass m as the mass moves…

A: The work done by a force on the object is given by Where  = Force vector,  = displacement vector…

Q: 3.4, 3.5 and 3.6

A:

Q: You see colors with a prism because  Polarization Dispersion  Diffraction  Interference…

A: Prism is an optical object which refracts the light passing through it. When a white light passes…

Q: cation, real or virtual) of the image? Two thin lenses have optical powers of 4.0 O, respectively.…

A: Given:-61)  The two thin lens  P = + 4 D and +5 D  They are  0.90 m = 90 cm from each other  Find:-…

Q: Discuss the phenomenon of optical coherence and its relevance in modern technology, particularly in…

A:

Q: 6. One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of…

A: Given:-  A couple walks three-fourths of the way around a circular lake. The radius of the circular…

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

A: Answer - Light travels faster in vacuum

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

A:

Q: How are different defects of eyesights corrected in terms of physics?

A:

Q: Choose all the possible items match with CO2 application in dentistry. wavelength of 10600 nm…

A:

Q: The structure of DNA is shown to be double helix by x-ray: a)diffraction. b)dispersion.…

A: Helical shape of DNA molecule is shown by the process known as X-ray diffraction technique. In this…

Q: In what ways does the diffraction of light influence the resolution of optical microscopes?

A: Ways through which diffraction of light influence the resolution of optical microscope.

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

A:

Q: Blue light (2 = of water (n wavelength of this light in the water? 465 nm in air) travels a = 1.33).…

A: Given:-q4)  The Blue light  with a wavelength λ= 465 nm  The wate refractive index n = 1.33  Find:-…

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

A: OTHERS