Name the instrument in which successive reflection of light takes place from two plane mirrors.

Epidiascope

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Gravimeter

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Sextant

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Microtome

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Solution

The correct option is C Sextant
A sextant is a doubly reflecting navigation instrument used to measure the angle between any two visible objects.

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Q. Find angle

θ

for which a light ray incident at angle

60^{\circ}

on the horizontal mirror becomes vertical after two successive reflections at the shown plane mirrors. Draw ray diagram forth event. (

θ

is angle between plane mirrors)

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Name the instrument in which successive reflection of light takes place from two plane mirrors.

The correct option is C SextantA sextant is a doubly reflecting navigation instrument used to measure the angle between any two visible objects.

The correct option is C Sextant
A sextant is a doubly reflecting navigation instrument used to measure the angle between any two visible objects.