Problem 2 Explain each variable in the formula below in less than 3 lines each.

Question

Problem 2 Explain each variable in the formula below in less than 3 lines each. Explain when the formula is used. A. 1/s + 1/s/= 1/f B. d sin theta m = m lambda A glass meniscus lens (refractive index 1.5) is surrounded by air, as shown in the figure. A. What is the sign of R_1 and why? B. What is the sign of R_2 and why? C. What is the focal length of the lens? D. Is it converging or diverging? Shown in the figure is one corner of a rectangular box filled with oil (n = 1.46) surrounded by air. A laser beam starts 10 cm from side A of the container and enters the oil at position x = 30 cm.

Explanation / Answer

1.A.)

1/s + 1/s' = 1/f

s is object distace and s' is image distance and f is focal length

it is used to calculate the position of the image , object and focal length of the mirror . it is called lens formula

1.B) d is the space between two slits by which the ray travels and makes interference pattern

Sin(theta) is the angle of the fringes make by the monochromatic light

m is order of the fringes

lambda is the wavelength of the light

it is used to calculate the position of dark and white fringes, in young double slit experiment

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