What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.20 km on the moon some 384000 km away?

Question

What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.20 km on the moon some 384000 km away? Assume an average wavelength of 550 nm for the light received.
cm

in progress 0
Ngọc Hoa 1 year 2021-09-03T16:46:34+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-09-03T16:47:45+00:00

    Answer:

    = 4.96cm

    Explanation:

    distance between objects of moon = 5.20km = 5.2 × 10³ m

    Wavelength of light, λ = 550nm = 5.50 × 10⁻⁷m

    distance of moon, L = 384000 km = 3.84 × 10⁸m

    formula for resolving power of two objects

    d = (1.22 × λ ×L) / D

    D = (1.22 × λ ×L) / d

    D = (1.22 × 5.50 × 10⁻⁷ ×3.84 × 10⁸) / 5.2 × 10³

    D = 4.96cm

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )