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What is required to specify the position...

What is required to specify the position of an object?

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Reference point
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An object is moving along +ve x-axis with a uniform acceleration of 4ms^(-2) . At time t=0 , x=5m and v=3ms^(-1) . (a) What will be the velocity and position of the object at time t=2s? What will be the velocity and position of the object when it has a velocity of 5ms^(-1) ?

An erect image 3 times the size of the object is obtained with a concave mirror of radius of curvature 36 cm . What is the position of the object ?

Knowledge Check

  • What would you use to obtain a virtual and erect image for any position of an object?

    A
    a concave mirror or a concave lens
    B
    a convex mirror or a convex lens
    C
    a concave mirror or a convex lens
    D
    a convex mirror or a concave lens.

  • What would you use to obtain a real and inverted image for any position of an object?

    A
    A convex mirror or a concave lens.
    B
    A concave mirror or a concave lens.
    C
    A concave mirror or a convex lens.
    D
    A convex mirror or a convex lens.

  • The image of an object placed in front of a concave mirror found to coincide with object itself. The position of the object is ______.

    A
    at C
    B
    between C and F
    C
    between F and pole
    D
    at F

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    (a) The magnification of a concave mirror is - 1. What is the position of the object? (b) The magnification of a spherical mirror is +- 2. What kind of mirror can it be?

    An object is moving along+ve x-axis with a uniform acceleration of 4 ms^(-2) . At time t=0 . X= 4 m and v=2 ms^(-1) . (a) What will be the velocity and position of the object at time t=3 s? (b) What will be the position of the object when it has a velocity 8 ms^(-1) ?

    What should be the position of the object when a concave mirror is to be used: (i) as a shaving mirror?, and (ii) as a doctor's mirror?

    a convex lens forms a virtual image of an object. What is the position of the object ?

    The image of an object placed in front of a concave mirror found to coincide with object itself. The position of the object is

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