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Optics

Scorching goIITian

Joined:	18 Feb 2008
Post:	221

29 Apr 2008 06:55:37 IST

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324

Assertion-Reason,b sure with ur ans

None

Assertion (A) : Laser can be used to measure

huge distances by the method of pulse reflection.

Reason (R) : Light beam obtained from laser is

highly collimative.

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Comments (1)

ankita raisinghani

Cool goIITian

Joined: 22 Jan 2008

Posts: 85

29 Apr 2008 22:42:28 IST

Like 0 people liked this

(a)

both assertion and reason are true and r is correct exp

intensity of laser is not reduced evn in large distances

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