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  1. Spherical belt: Surface area for a sphere = SA = 4 π r² --- ... + z² = R² We express now the equation of the sphere in SPHERICAL coordinates { x = ϱ * sin(φ) * cos(ϑ) { y = ϱ * sin...

    2 Answers · Science & Mathematics · 18/03/2012

  2. For spherical mirrors: f = -r/2, where f is the focal length and r...the directions appropriately, then continue them to the spherical mirror. From the mirror they will intersect at a point 6cm to the...

    1 Answers · Science & Mathematics · 20/02/2018

  3. Spherical shaped mirrors are used in telescopes...almost. Parabolic mirrors actually do a much better job than spherical shaped mirrors. But parabolic mirrors are much...

    1 Answers · Science & Mathematics · 26/03/2008

  4. Spherical aberrations are never desirable. Aberrations are departures of the performance of an optical system from the predictions of paraxial optics. Aberration leads... to compensate for aberration. This occurs in nature usually in eyes of animals that have aged such that the lens of the eye has distorted leading to spherical aberrations.

    1 Answers · Science & Mathematics · 19/01/2010

  5. Consider an imaginary spherical surface concentric with the shell, lying within the substance of the shell. If...

    1 Answers · Science & Mathematics · 21/02/2013

  6. I assume an homogeneous spherical distribution of charges (radius R): ρ = constant Due to the spherical ...

    2 Answers · Science & Mathematics · 26/08/2012

  7. A spherical sound wave's intensity changes with distance, r, according to...

    1 Answers · Science & Mathematics · 09/12/2012

  8. The spherical lens equation is approximated as n2/si+n1/so = (n2-n1)/R (ref...

    3 Answers · Science & Mathematics · 22/02/2010

  9. Spherical lenses refer to the curvature of their surface .. part of a sphere. ..., cameras, magnifying glasses .. all use spherical lenses. Spherical lenses can have convex or concave curvature.

    4 Answers · Science & Mathematics · 06/07/2012

  10. Water has a spherical shape due to the cohesive forces between water molecules...property. This is how water molecules stay spherical . Just soak your hand with oil and there'll be...

    3 Answers · Science & Mathematics · 09/10/2011

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