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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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The correct Answer is:
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 ?

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

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

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 ______.

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
    • AAKASH INSTITUTE-MOTION IN A STRAIGHT LINE-TRY YOURSELF
    1. What is required to specify the position of an object?

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    2. A say that B is in motion. But C says that B is at rest. Is this possi...

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    3. A particle travels along the path ABC, as shown in the figure given be...

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    4. What is the ratio of displacement to the path length traversed by an o...

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    5. A boy moves 400 m towards north, 300 m towards west and again 400 m to...

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    6. Explain with the help of an example, if the displacement of a particle...

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    7. Is displacement a scalar or a vector quantity?

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    8. What is the S.I. unit of displacement ?

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    9. What is the slope of x-t graph of a stationary object?

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    10. The position - time graph of an object is given below. What is the vel...

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    11. The position - time graph of an object is given below. What is the vel...

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    12. The x-t graph of an object is a straight line inclined to time-axis. W...

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    13. The position - time (x-t) graph of an object in uniform motion is show...

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    14. The position-time (x-t) graph of an object in uniform motion is shown ...

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    15. What is the average velocity of the object during its course of motion...

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    16. If the displacement of an object during its motion is 100 m in a time ...

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    17. An object travels 20 m in 10 s. What is the average speed of the objec...

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    18. SI unit of velocity is (i) m/s (ii) m//s^(2) (iii) m (iv) s

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    19. Under what condition the magnitude of average velocity is equal to the...

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    20. A boy swims in a 100 m long pool. He covers 60 m with a velocity of 20...

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