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Find the diameter of the image of the m...

Find the diameter of the image of the moon formed by a spherical concave mirror of focal length 7.6 m. The diameter of the moon is 3450 km and the distance of the earth and the moon is `3.8 xx 10^5 km.`

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The correct Answer is:
`10.35cm = (3933)/(380)cm`
Moon acts as object at infinity, so image is formed at foucus.
`|m| = |(-v)/(u)| d_(0) = (11.4xx3450)/(3.8xx10^(8)) km = 10.35cm`
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
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  2. A point source is at a distance 35cm on the optical axos from a sph...

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  3. Find the diameter of the image of the moon formed by a spherical conc...

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  4. The radius of curvature of a convex spherical mirror is 1.2m. How fa...

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  5. A converging beam of light rays in incident on a concave spherical ...

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  6. A point object is placed on the principle axis at 60cm in fornt ...

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  7. A man uses a concave mirror for shaving. He keeps his face at a dist...

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  8. Two spherical mirros (convex and concave) having the same focal leng...

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  9. A light ray falling an agnle of 60^(@) with the surface of a clean ...

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  10. A light ray is incident at 45^(@) on a glass slab. The slab is 3cm thi...

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  11. In the given figure an abserve in air (n=1) sees the botoom of a bre...

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  12. In the given figure rasy incident on an interface would converge 10c...

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  13. A fish is rising up vertically inside a pond with velocity 4 cm/s and ...

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  14. Find the apparednt distance between the observer and the object shwon ...

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  15. Find the apparent depth of object of the object seen by observe A (in...

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  16. Locate the image fo the point P as seen by the eye in the figure.

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  17. A small object is placed at the centre of the bottom of a cylindrical ...

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  18. A point source is placed at a depth h below the surface of water (re...

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  19. Light falls from glass (mu=1.5) to air. Find the angle of incidence fo...

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  20. At what values fo the refractive index of a recantangular prism can...

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