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Figure shows an object O kept at P. A pl...

Figure shows an object O kept at P. A plane mirror parallel to yz plane is moving with velocity `3 hat(i) m//s`. Select the correct alternative

A

The velocity of image is `6 hat(i) m//s`

B

The velocity of image is `-6 hat(i) m//s`

C

The velocity of image w.r.t. mirror is `3 hat(i) m//s`

D

The velocity of image w.r.t. object is `-6 hat(i) m//s`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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Knowledge Check

  • Acceleration of a particle which is at rest at x=0 is vec a = (4 -2 x) hat i . Select the correct alternative (s).

    A
    Maximum speed of the particle is `4` units
    B
    Particle further comes to rest at ` x =4`
    C
    Particle oscillates about ` x=2`
    D
    Particle will continuously acceleration along the x-axis.

  • An object and a plane mirror are shown in figure. Mirror is moved with velocity V as shown. The velocity of image is : .

    A
    `2 V sin theta`
    B
    2 V
    C
    `2 V cos theta`
    D
    none of these

  • A plane mirror placed at the origin has hat(i) as the normal vector to its reflecting surface. The mirror beings to translate with a velocity hat(i) + hat(j) + hat(k) . At the same time an object which was initially at hat(i) + hat(j) starts moving with a velocity (hat(i)+hat(j)) m//s Now choose the correct options.

    A
    Initial position of the image will be `-hat(i)+hat(j)`
    B
    The velocity of the image will be `hat(i)+hat(j)`
    C
    The velocity of the imahe relative to the object will be zero
    D
    The velocity of the image relative to the mirror will be `-hat(k)`