Advertisements
Advertisements
प्रश्न
Make a formula for the statement:"The reciprocal of focal length f is equal to the sum of reciprocals of the object distance u and the image distance v."
उत्तर
Object distance = u
Image distance = v
Reciprocal of object distance = `(1)/"u"`
Reciprocal of Image distance = `(1)/"v"`
sum of reciprocals = `(1)/"u" + (1)/"v"`
Reciprocal of focal length = `(1)/"f"`
As per the data: `(1)/"f" = (1)/"u" + (1)/"v"`.
APPEARS IN
संबंधित प्रश्न
Make a formula for the statement:"The number of diagonals, d, that can be drawn from one vertex of an n sided polygon to all the other vertices is equal to the number of sides of the polygon less 3"
Make L the subject of formula T = `2pisqrt("L"/"G")`
Make x the subject of formula `"a"x^2/"a"^2 + y^2/"b"^2` = 1
Make R2 the subject of formula R2 = 4π(R12 - R22)
Make A the subject of formula R = `("m"_1"B" + "m"_2"A")/("m"_1 + "m"_2)`
Make a the subject of the formula S = `"n"/(2){2"a" + ("n" - 1)"d"}`. Find a when S = 50, n = 10 and d = 2.
Make x the subject of the formula y = `(1 - x^2)/(1 + x^2)`. Find x, when y = `(1)/(2)`
Make z the subject of the formula y = `(2z + 1)/(2z - 1)`. If x = `(y + 1)/(y - 1)`, express z in terms of x, and find its value when x = 34.
The total energy E possess by a body of Mass 'm', moving with a velocity 'v' at a height 'h' is given by: E = `(1)/(2) "m" "u"^2 + "mgh"`. Find m, if v = 2, g = 10, h = 5 and E = 104.
"Area A oof a circular ring formed by 2 concentric circles is equal to the product of pie and the difference of the square of the bigger radius R and the square of the bigger radius R and the square of the smaller radius r. Express the above statement as a formula. Make r the subject of the formula and find r, when A = 88 sq cm and R = 8cm.
