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The angular subtended at the centre of t...

The angular subtended at the centre of the circle by an arc of length equal to the radius of circle is

A

one radian

B

one degree

C

one steradian

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Assertion : Radian is the unit of distance. Reason : One radian is the angle subtended at the centre of a circle by an arc equal in length to the radius of the circle.

    A
    If both assertion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • The radian measure of the angle, subtends at the centre of a circle by an arc whose length is twice the diameter of the circle, is

    A
    2
    B
    `pi/2`
    C
    `pi`
    D
    4

  • The angle subtended at the centre of a circle of radius 3 cm by an arc of lenhgth 1 cm is :

    A
    `(30^(@))/(pi)`
    B
    `(60^(@))/(pi)`
    C
    `60^(@)`
    D
    None of the above

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