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A laser beam is used for locating distan...

A laser beam is used for locating distant objects because

A

it is monochromatic

B

it is not chromatic

C

it is not observed

D

it has small angular spread

Text Solution

Verified by Experts

The correct Answer is:
D
A laser beam is used for locating distant objects because it has small abular spread.
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Knowledge Check

  • A laser beam is always

    A
    a convergent beam
    B
    a divergent beam
    C
    a parallel beam
    D
    divergent to start with and parallel later on

  • A laser beam is used for carrying our surgery because it

    A
    is highly monochromatic
    B
    is highly coherent
    C
    can be sharply focussed
    D
    is highly directional

  • C - 14 is used in carbon dating of dead objects because

    A
    Its half-life is `10^(3)` years
    B
    Its half-life is `10^(4)` years
    C
    It is found in nature abundantly and in definite ratio
    D
    It is found in dead animals abundantly

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